AMDGPU/GlobalISel: Clamp G_SITOFP/G_UITOFP sources

llvm-svn: 373989

2 files changed, 575 insertions, 146 deletions

diff --git a/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-sitofp.mir b/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-sitofp.mir
index 5b9aa93cf9e..d329e7c405b 100644
--- a/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-sitofp.mir
+++ b/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-sitofp.mir
@@ -1,5 +1,6 @@
 # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
-# RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=fiji -run-pass=legalizer -global-isel %s -o - | FileCheck %s
+# RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=tahiti -run-pass=legalizer %s -o - | FileCheck -check-prefix=GFX6 %s
+# RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=fiji -run-pass=legalizer %s -o - | FileCheck -check-prefix=GFX8 %s
 
 ---
 name: test_sitofp_s32_to_s32
@@ -7,10 +8,14 @@ body: |
   bb.0:
     liveins: $vgpr0
 
-    ; CHECK-LABEL: name: test_sitofp_s32_to_s32
-    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
-    ; CHECK: [[SITOFP:%[0-9]+]]:_(s32) = G_SITOFP [[COPY]](s32)
-    ; CHECK: $vgpr0 = COPY [[SITOFP]](s32)
+    ; GFX6-LABEL: name: test_sitofp_s32_to_s32
+    ; GFX6: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX6: [[SITOFP:%[0-9]+]]:_(s32) = G_SITOFP [[COPY]](s32)
+    ; GFX6: $vgpr0 = COPY [[SITOFP]](s32)
+    ; GFX8-LABEL: name: test_sitofp_s32_to_s32
+    ; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX8: [[SITOFP:%[0-9]+]]:_(s32) = G_SITOFP [[COPY]](s32)
+    ; GFX8: $vgpr0 = COPY [[SITOFP]](s32)
     %0:_(s32) = COPY $vgpr0
     %1:_(s32) = G_SITOFP %0
     $vgpr0 = COPY %1
@@ -22,10 +27,14 @@ body: |
   bb.0:
     liveins: $vgpr0
 
-    ; CHECK-LABEL: name: test_sitofp_s32_to_s64
-    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
-    ; CHECK: [[SITOFP:%[0-9]+]]:_(s64) = G_SITOFP [[COPY]](s32)
-    ; CHECK: $vgpr0_vgpr1 = COPY [[SITOFP]](s64)
+    ; GFX6-LABEL: name: test_sitofp_s32_to_s64
+    ; GFX6: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX6: [[SITOFP:%[0-9]+]]:_(s64) = G_SITOFP [[COPY]](s32)
+    ; GFX6: $vgpr0_vgpr1 = COPY [[SITOFP]](s64)
+    ; GFX8-LABEL: name: test_sitofp_s32_to_s64
+    ; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX8: [[SITOFP:%[0-9]+]]:_(s64) = G_SITOFP [[COPY]](s32)
+    ; GFX8: $vgpr0_vgpr1 = COPY [[SITOFP]](s64)
     %0:_(s32) = COPY $vgpr0
     %1:_(s64) = G_SITOFP %0
     $vgpr0_vgpr1 = COPY %1
@@ -37,13 +46,20 @@ body: |
   bb.0:
     liveins: $vgpr0_vgpr1
 
-    ; CHECK-LABEL: name: test_sitofp_v2s32_to_v2s32
-    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
-    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
-    ; CHECK: [[SITOFP:%[0-9]+]]:_(s32) = G_SITOFP [[UV]](s32)
-    ; CHECK: [[SITOFP1:%[0-9]+]]:_(s32) = G_SITOFP [[UV1]](s32)
-    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[SITOFP]](s32), [[SITOFP1]](s32)
-    ; CHECK: $vgpr0_vgpr1 = COPY [[BUILD_VECTOR]](<2 x s32>)
+    ; GFX6-LABEL: name: test_sitofp_v2s32_to_v2s32
+    ; GFX6: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
+    ; GFX6: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
+    ; GFX6: [[SITOFP:%[0-9]+]]:_(s32) = G_SITOFP [[UV]](s32)
+    ; GFX6: [[SITOFP1:%[0-9]+]]:_(s32) = G_SITOFP [[UV1]](s32)
+    ; GFX6: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[SITOFP]](s32), [[SITOFP1]](s32)
+    ; GFX6: $vgpr0_vgpr1 = COPY [[BUILD_VECTOR]](<2 x s32>)
+    ; GFX8-LABEL: name: test_sitofp_v2s32_to_v2s32
+    ; GFX8: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
+    ; GFX8: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
+    ; GFX8: [[SITOFP:%[0-9]+]]:_(s32) = G_SITOFP [[UV]](s32)
+    ; GFX8: [[SITOFP1:%[0-9]+]]:_(s32) = G_SITOFP [[UV1]](s32)
+    ; GFX8: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[SITOFP]](s32), [[SITOFP1]](s32)
+    ; GFX8: $vgpr0_vgpr1 = COPY [[BUILD_VECTOR]](<2 x s32>)
     %0:_(<2 x s32>) = COPY $vgpr0_vgpr1
     %1:_(<2 x s32>) = G_SITOFP %0
     $vgpr0_vgpr1 = COPY %1
@@ -55,13 +71,20 @@ body: |
   bb.0:
     liveins: $vgpr0_vgpr1
 
-    ; CHECK-LABEL: name: test_sitofp_v2s32_to_v2s64
-    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
-    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
-    ; CHECK: [[SITOFP:%[0-9]+]]:_(s64) = G_SITOFP [[UV]](s32)
-    ; CHECK: [[SITOFP1:%[0-9]+]]:_(s64) = G_SITOFP [[UV1]](s32)
-    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s64>) = G_BUILD_VECTOR [[SITOFP]](s64), [[SITOFP1]](s64)
-    ; CHECK: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BUILD_VECTOR]](<2 x s64>)
+    ; GFX6-LABEL: name: test_sitofp_v2s32_to_v2s64
+    ; GFX6: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
+    ; GFX6: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
+    ; GFX6: [[SITOFP:%[0-9]+]]:_(s64) = G_SITOFP [[UV]](s32)
+    ; GFX6: [[SITOFP1:%[0-9]+]]:_(s64) = G_SITOFP [[UV1]](s32)
+    ; GFX6: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s64>) = G_BUILD_VECTOR [[SITOFP]](s64), [[SITOFP1]](s64)
+    ; GFX6: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BUILD_VECTOR]](<2 x s64>)
+    ; GFX8-LABEL: name: test_sitofp_v2s32_to_v2s64
+    ; GFX8: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
+    ; GFX8: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
+    ; GFX8: [[SITOFP:%[0-9]+]]:_(s64) = G_SITOFP [[UV]](s32)
+    ; GFX8: [[SITOFP1:%[0-9]+]]:_(s64) = G_SITOFP [[UV1]](s32)
+    ; GFX8: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s64>) = G_BUILD_VECTOR [[SITOFP]](s64), [[SITOFP1]](s64)
+    ; GFX8: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BUILD_VECTOR]](<2 x s64>)
     %0:_(<2 x s32>) = COPY $vgpr0_vgpr1
     %1:_(<2 x s64>) = G_SITOFP %0
     $vgpr0_vgpr1_vgpr2_vgpr3 = COPY %1
@@ -73,50 +96,94 @@ body: |
   bb.0:
     liveins: $vgpr0_vgpr1
 
-    ; CHECK-LABEL: name: test_sitofp_s64_to_s32
-    ; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
-    ; CHECK: [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 63
-    ; CHECK: [[TRUNC:%[0-9]+]]:_(s32) = G_TRUNC [[C]](s64)
-    ; CHECK: [[ASHR:%[0-9]+]]:_(s64) = G_ASHR [[COPY]], [[TRUNC]](s32)
-    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](s64)
-    ; CHECK: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[ASHR]](s64)
-    ; CHECK: [[UADDO:%[0-9]+]]:_(s32), [[UADDO1:%[0-9]+]]:_(s1) = G_UADDO [[UV]], [[UV2]]
-    ; CHECK: [[UADDE:%[0-9]+]]:_(s32), [[UADDE1:%[0-9]+]]:_(s1) = G_UADDE [[UV1]], [[UV3]], [[UADDO1]]
-    ; CHECK: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[UADDO]](s32), [[UADDE]](s32)
-    ; CHECK: [[XOR:%[0-9]+]]:_(s64) = G_XOR [[MV]], [[ASHR]]
-    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
-    ; CHECK: [[C2:%[0-9]+]]:_(s64) = G_CONSTANT i64 0
-    ; CHECK: [[CTLZ_ZERO_UNDEF:%[0-9]+]]:_(s32) = G_CTLZ_ZERO_UNDEF [[XOR]](s64)
-    ; CHECK: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 190
-    ; CHECK: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[C3]], [[CTLZ_ZERO_UNDEF]]
-    ; CHECK: [[ICMP:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[XOR]](s64), [[C2]]
-    ; CHECK: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[ICMP]](s1), [[SUB]], [[C1]]
-    ; CHECK: [[C4:%[0-9]+]]:_(s64) = G_CONSTANT i64 9223372036854775807
-    ; CHECK: [[SHL:%[0-9]+]]:_(s64) = G_SHL [[XOR]], [[CTLZ_ZERO_UNDEF]](s32)
-    ; CHECK: [[AND:%[0-9]+]]:_(s64) = G_AND [[SHL]], [[C4]]
-    ; CHECK: [[C5:%[0-9]+]]:_(s64) = G_CONSTANT i64 1099511627775
-    ; CHECK: [[AND1:%[0-9]+]]:_(s64) = G_AND [[AND]], [[C5]]
-    ; CHECK: [[C6:%[0-9]+]]:_(s64) = G_CONSTANT i64 40
-    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s32) = G_TRUNC [[C6]](s64)
-    ; CHECK: [[LSHR:%[0-9]+]]:_(s64) = G_LSHR [[AND]], [[TRUNC1]](s32)
-    ; CHECK: [[C7:%[0-9]+]]:_(s32) = G_CONSTANT i32 23
-    ; CHECK: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[SELECT]], [[C7]](s32)
-    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s32) = G_TRUNC [[LSHR]](s64)
-    ; CHECK: [[OR:%[0-9]+]]:_(s32) = G_OR [[SHL1]], [[TRUNC2]]
-    ; CHECK: [[C8:%[0-9]+]]:_(s64) = G_CONSTANT i64 549755813888
-    ; CHECK: [[ICMP1:%[0-9]+]]:_(s1) = G_ICMP intpred(ugt), [[AND1]](s64), [[C8]]
-    ; CHECK: [[ICMP2:%[0-9]+]]:_(s1) = G_ICMP intpred(eq), [[AND1]](s64), [[C8]]
-    ; CHECK: [[C9:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
-    ; CHECK: [[AND2:%[0-9]+]]:_(s32) = G_AND [[OR]], [[C9]]
-    ; CHECK: [[SELECT1:%[0-9]+]]:_(s32) = G_SELECT [[ICMP2]](s1), [[AND2]], [[C1]]
-    ; CHECK: [[SELECT2:%[0-9]+]]:_(s32) = G_SELECT [[ICMP1]](s1), [[C9]], [[SELECT1]]
-    ; CHECK: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[OR]], [[SELECT2]]
-    ; CHECK: [[UITOFP:%[0-9]+]]:_(s32) = G_UITOFP [[XOR]](s64)
-    ; CHECK: [[FNEG:%[0-9]+]]:_(s32) = G_FNEG [[UITOFP]]
-    ; CHECK: [[ICMP3:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[ASHR]](s64), [[C2]]
-    ; CHECK: [[SELECT3:%[0-9]+]]:_(s32) = G_SELECT [[ICMP3]](s1), [[FNEG]], [[UITOFP]]
-    ; CHECK: [[SITOFP:%[0-9]+]]:_(s32) = G_SITOFP [[COPY]](s64)
-    ; CHECK: $vgpr0 = COPY [[SITOFP]](s32)
+    ; GFX6-LABEL: name: test_sitofp_s64_to_s32
+    ; GFX6: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
+    ; GFX6: [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 63
+    ; GFX6: [[TRUNC:%[0-9]+]]:_(s32) = G_TRUNC [[C]](s64)
+    ; GFX6: [[ASHR:%[0-9]+]]:_(s64) = G_ASHR [[COPY]], [[TRUNC]](s32)
+    ; GFX6: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](s64)
+    ; GFX6: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[ASHR]](s64)
+    ; GFX6: [[UADDO:%[0-9]+]]:_(s32), [[UADDO1:%[0-9]+]]:_(s1) = G_UADDO [[UV]], [[UV2]]
+    ; GFX6: [[UADDE:%[0-9]+]]:_(s32), [[UADDE1:%[0-9]+]]:_(s1) = G_UADDE [[UV1]], [[UV3]], [[UADDO1]]
+    ; GFX6: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[UADDO]](s32), [[UADDE]](s32)
+    ; GFX6: [[XOR:%[0-9]+]]:_(s64) = G_XOR [[MV]], [[ASHR]]
+    ; GFX6: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
+    ; GFX6: [[C2:%[0-9]+]]:_(s64) = G_CONSTANT i64 0
+    ; GFX6: [[CTLZ_ZERO_UNDEF:%[0-9]+]]:_(s32) = G_CTLZ_ZERO_UNDEF [[XOR]](s64)
+    ; GFX6: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 190
+    ; GFX6: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[C3]], [[CTLZ_ZERO_UNDEF]]
+    ; GFX6: [[ICMP:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[XOR]](s64), [[C2]]
+    ; GFX6: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[ICMP]](s1), [[SUB]], [[C1]]
+    ; GFX6: [[C4:%[0-9]+]]:_(s64) = G_CONSTANT i64 9223372036854775807
+    ; GFX6: [[SHL:%[0-9]+]]:_(s64) = G_SHL [[XOR]], [[CTLZ_ZERO_UNDEF]](s32)
+    ; GFX6: [[AND:%[0-9]+]]:_(s64) = G_AND [[SHL]], [[C4]]
+    ; GFX6: [[C5:%[0-9]+]]:_(s64) = G_CONSTANT i64 1099511627775
+    ; GFX6: [[AND1:%[0-9]+]]:_(s64) = G_AND [[AND]], [[C5]]
+    ; GFX6: [[C6:%[0-9]+]]:_(s64) = G_CONSTANT i64 40
+    ; GFX6: [[TRUNC1:%[0-9]+]]:_(s32) = G_TRUNC [[C6]](s64)
+    ; GFX6: [[LSHR:%[0-9]+]]:_(s64) = G_LSHR [[AND]], [[TRUNC1]](s32)
+    ; GFX6: [[C7:%[0-9]+]]:_(s32) = G_CONSTANT i32 23
+    ; GFX6: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[SELECT]], [[C7]](s32)
+    ; GFX6: [[TRUNC2:%[0-9]+]]:_(s32) = G_TRUNC [[LSHR]](s64)
+    ; GFX6: [[OR:%[0-9]+]]:_(s32) = G_OR [[SHL1]], [[TRUNC2]]
+    ; GFX6: [[C8:%[0-9]+]]:_(s64) = G_CONSTANT i64 549755813888
+    ; GFX6: [[ICMP1:%[0-9]+]]:_(s1) = G_ICMP intpred(ugt), [[AND1]](s64), [[C8]]
+    ; GFX6: [[ICMP2:%[0-9]+]]:_(s1) = G_ICMP intpred(eq), [[AND1]](s64), [[C8]]
+    ; GFX6: [[C9:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
+    ; GFX6: [[AND2:%[0-9]+]]:_(s32) = G_AND [[OR]], [[C9]]
+    ; GFX6: [[SELECT1:%[0-9]+]]:_(s32) = G_SELECT [[ICMP2]](s1), [[AND2]], [[C1]]
+    ; GFX6: [[SELECT2:%[0-9]+]]:_(s32) = G_SELECT [[ICMP1]](s1), [[C9]], [[SELECT1]]
+    ; GFX6: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[OR]], [[SELECT2]]
+    ; GFX6: [[UITOFP:%[0-9]+]]:_(s32) = G_UITOFP [[XOR]](s64)
+    ; GFX6: [[FNEG:%[0-9]+]]:_(s32) = G_FNEG [[UITOFP]]
+    ; GFX6: [[ICMP3:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[ASHR]](s64), [[C2]]
+    ; GFX6: [[SELECT3:%[0-9]+]]:_(s32) = G_SELECT [[ICMP3]](s1), [[FNEG]], [[UITOFP]]
+    ; GFX6: [[SITOFP:%[0-9]+]]:_(s32) = G_SITOFP [[COPY]](s64)
+    ; GFX6: $vgpr0 = COPY [[SITOFP]](s32)
+    ; GFX8-LABEL: name: test_sitofp_s64_to_s32
+    ; GFX8: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
+    ; GFX8: [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 63
+    ; GFX8: [[TRUNC:%[0-9]+]]:_(s32) = G_TRUNC [[C]](s64)
+    ; GFX8: [[ASHR:%[0-9]+]]:_(s64) = G_ASHR [[COPY]], [[TRUNC]](s32)
+    ; GFX8: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](s64)
+    ; GFX8: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[ASHR]](s64)
+    ; GFX8: [[UADDO:%[0-9]+]]:_(s32), [[UADDO1:%[0-9]+]]:_(s1) = G_UADDO [[UV]], [[UV2]]
+    ; GFX8: [[UADDE:%[0-9]+]]:_(s32), [[UADDE1:%[0-9]+]]:_(s1) = G_UADDE [[UV1]], [[UV3]], [[UADDO1]]
+    ; GFX8: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[UADDO]](s32), [[UADDE]](s32)
+    ; GFX8: [[XOR:%[0-9]+]]:_(s64) = G_XOR [[MV]], [[ASHR]]
+    ; GFX8: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
+    ; GFX8: [[C2:%[0-9]+]]:_(s64) = G_CONSTANT i64 0
+    ; GFX8: [[CTLZ_ZERO_UNDEF:%[0-9]+]]:_(s32) = G_CTLZ_ZERO_UNDEF [[XOR]](s64)
+    ; GFX8: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 190
+    ; GFX8: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[C3]], [[CTLZ_ZERO_UNDEF]]
+    ; GFX8: [[ICMP:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[XOR]](s64), [[C2]]
+    ; GFX8: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[ICMP]](s1), [[SUB]], [[C1]]
+    ; GFX8: [[C4:%[0-9]+]]:_(s64) = G_CONSTANT i64 9223372036854775807
+    ; GFX8: [[SHL:%[0-9]+]]:_(s64) = G_SHL [[XOR]], [[CTLZ_ZERO_UNDEF]](s32)
+    ; GFX8: [[AND:%[0-9]+]]:_(s64) = G_AND [[SHL]], [[C4]]
+    ; GFX8: [[C5:%[0-9]+]]:_(s64) = G_CONSTANT i64 1099511627775
+    ; GFX8: [[AND1:%[0-9]+]]:_(s64) = G_AND [[AND]], [[C5]]
+    ; GFX8: [[C6:%[0-9]+]]:_(s64) = G_CONSTANT i64 40
+    ; GFX8: [[TRUNC1:%[0-9]+]]:_(s32) = G_TRUNC [[C6]](s64)
+    ; GFX8: [[LSHR:%[0-9]+]]:_(s64) = G_LSHR [[AND]], [[TRUNC1]](s32)
+    ; GFX8: [[C7:%[0-9]+]]:_(s32) = G_CONSTANT i32 23
+    ; GFX8: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[SELECT]], [[C7]](s32)
+    ; GFX8: [[TRUNC2:%[0-9]+]]:_(s32) = G_TRUNC [[LSHR]](s64)
+    ; GFX8: [[OR:%[0-9]+]]:_(s32) = G_OR [[SHL1]], [[TRUNC2]]
+    ; GFX8: [[C8:%[0-9]+]]:_(s64) = G_CONSTANT i64 549755813888
+    ; GFX8: [[ICMP1:%[0-9]+]]:_(s1) = G_ICMP intpred(ugt), [[AND1]](s64), [[C8]]
+    ; GFX8: [[ICMP2:%[0-9]+]]:_(s1) = G_ICMP intpred(eq), [[AND1]](s64), [[C8]]
+    ; GFX8: [[C9:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
+    ; GFX8: [[AND2:%[0-9]+]]:_(s32) = G_AND [[OR]], [[C9]]
+    ; GFX8: [[SELECT1:%[0-9]+]]:_(s32) = G_SELECT [[ICMP2]](s1), [[AND2]], [[C1]]
+    ; GFX8: [[SELECT2:%[0-9]+]]:_(s32) = G_SELECT [[ICMP1]](s1), [[C9]], [[SELECT1]]
+    ; GFX8: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[OR]], [[SELECT2]]
+    ; GFX8: [[UITOFP:%[0-9]+]]:_(s32) = G_UITOFP [[XOR]](s64)
+    ; GFX8: [[FNEG:%[0-9]+]]:_(s32) = G_FNEG [[UITOFP]]
+    ; GFX8: [[ICMP3:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[ASHR]](s64), [[C2]]
+    ; GFX8: [[SELECT3:%[0-9]+]]:_(s32) = G_SELECT [[ICMP3]](s1), [[FNEG]], [[UITOFP]]
+    ; GFX8: [[SITOFP:%[0-9]+]]:_(s32) = G_SITOFP [[COPY]](s64)
+    ; GFX8: $vgpr0 = COPY [[SITOFP]](s32)
     %0:_(s64) = COPY $vgpr0_vgpr1
     %1:_(s32) = G_SITOFP %0
     $vgpr0 = COPY %1
@@ -128,33 +195,196 @@ body: |
   bb.0:
     liveins: $vgpr0_vgpr1
 
-    ; CHECK-LABEL: name: test_sitofp_s64_to_s64
-    ; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
-    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](s64)
-    ; CHECK: [[SITOFP:%[0-9]+]]:_(s64) = G_SITOFP [[UV1]](s32)
-    ; CHECK: [[UITOFP:%[0-9]+]]:_(s64) = G_UITOFP [[UV]](s32)
-    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 32
-    ; CHECK: [[INT:%[0-9]+]]:_(s64) = G_INTRINSIC intrinsic(@llvm.amdgcn.ldexp), [[SITOFP]](s64), [[C]](s32)
-    ; CHECK: [[FADD:%[0-9]+]]:_(s64) = G_FADD [[INT]], [[UITOFP]]
-    ; CHECK: $vgpr0_vgpr1 = COPY [[FADD]](s64)
+    ; GFX6-LABEL: name: test_sitofp_s64_to_s64
+    ; GFX6: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
+    ; GFX6: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](s64)
+    ; GFX6: [[SITOFP:%[0-9]+]]:_(s64) = G_SITOFP [[UV1]](s32)
+    ; GFX6: [[UITOFP:%[0-9]+]]:_(s64) = G_UITOFP [[UV]](s32)
+    ; GFX6: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 32
+    ; GFX6: [[INT:%[0-9]+]]:_(s64) = G_INTRINSIC intrinsic(@llvm.amdgcn.ldexp), [[SITOFP]](s64), [[C]](s32)
+    ; GFX6: [[FADD:%[0-9]+]]:_(s64) = G_FADD [[INT]], [[UITOFP]]
+    ; GFX6: $vgpr0_vgpr1 = COPY [[FADD]](s64)
+    ; GFX8-LABEL: name: test_sitofp_s64_to_s64
+    ; GFX8: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
+    ; GFX8: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](s64)
+    ; GFX8: [[SITOFP:%[0-9]+]]:_(s64) = G_SITOFP [[UV1]](s32)
+    ; GFX8: [[UITOFP:%[0-9]+]]:_(s64) = G_UITOFP [[UV]](s32)
+    ; GFX8: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 32
+    ; GFX8: [[INT:%[0-9]+]]:_(s64) = G_INTRINSIC intrinsic(@llvm.amdgcn.ldexp), [[SITOFP]](s64), [[C]](s32)
+    ; GFX8: [[FADD:%[0-9]+]]:_(s64) = G_FADD [[INT]], [[UITOFP]]
+    ; GFX8: $vgpr0_vgpr1 = COPY [[FADD]](s64)
     %0:_(s64) = COPY $vgpr0_vgpr1
     %1:_(s64) = G_SITOFP %0
     $vgpr0_vgpr1 = COPY %1
 ...
 
 ---
+name: test_sitofp_s16_to_s16
+body: |
+  bb.0:
+    liveins: $vgpr0
+
+    ; GFX6-LABEL: name: test_sitofp_s16_to_s16
+    ; GFX6: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
+    ; GFX6: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX6: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[COPY1]], [[C]](s32)
+    ; GFX6: [[ASHR:%[0-9]+]]:_(s32) = G_ASHR [[SHL]], [[C]](s32)
+    ; GFX6: [[SITOFP:%[0-9]+]]:_(s16) = G_SITOFP [[ASHR]](s32)
+    ; GFX6: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[SITOFP]](s16)
+    ; GFX6: $vgpr0 = COPY [[ANYEXT]](s32)
+    ; GFX8-LABEL: name: test_sitofp_s16_to_s16
+    ; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX8: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[COPY]](s32)
+    ; GFX8: [[SITOFP:%[0-9]+]]:_(s16) = G_SITOFP [[TRUNC]](s16)
+    ; GFX8: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[SITOFP]](s16)
+    ; GFX8: $vgpr0 = COPY [[ANYEXT]](s32)
+    %0:_(s32) = COPY $vgpr0
+    %1:_(s16) = G_TRUNC %0
+    %2:_(s16) = G_SITOFP %1
+    %3:_(s32) = G_ANYEXT %2
+    $vgpr0 = COPY %3
+...
+
+---
 name: test_sitofp_s16_to_s32
 body: |
   bb.0:
     liveins: $vgpr0
 
-    ; CHECK-LABEL: name: test_sitofp_s16_to_s32
-    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
-    ; CHECK: [[SITOFP:%[0-9]+]]:_(s16) = G_SITOFP [[COPY]](s32)
-    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[SITOFP]](s16)
-    ; CHECK: $vgpr0 = COPY [[ANYEXT]](s32)
+    ; GFX6-LABEL: name: test_sitofp_s16_to_s32
+    ; GFX6: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
+    ; GFX6: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX6: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[COPY1]], [[C]](s32)
+    ; GFX6: [[ASHR:%[0-9]+]]:_(s32) = G_ASHR [[SHL]], [[C]](s32)
+    ; GFX6: [[SITOFP:%[0-9]+]]:_(s32) = G_SITOFP [[ASHR]](s32)
+    ; GFX6: $vgpr0 = COPY [[SITOFP]](s32)
+    ; GFX8-LABEL: name: test_sitofp_s16_to_s32
+    ; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
+    ; GFX8: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX8: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[COPY1]], [[C]](s32)
+    ; GFX8: [[ASHR:%[0-9]+]]:_(s32) = G_ASHR [[SHL]], [[C]](s32)
+    ; GFX8: [[SITOFP:%[0-9]+]]:_(s32) = G_SITOFP [[ASHR]](s32)
+    ; GFX8: $vgpr0 = COPY [[SITOFP]](s32)
     %0:_(s32) = COPY $vgpr0
-    %1:_(s16) = G_SITOFP %0
-    %2:_(s32) = G_ANYEXT %1
+    %1:_(s16) = G_TRUNC %0
+    %2:_(s32) = G_SITOFP %1
     $vgpr0 = COPY %2
 ...
+
+---
+name: test_sitofp_s16_to_s64
+body: |
+  bb.0:
+    liveins: $vgpr0
+
+    ; GFX6-LABEL: name: test_sitofp_s16_to_s64
+    ; GFX6: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
+    ; GFX6: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX6: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[COPY1]], [[C]](s32)
+    ; GFX6: [[ASHR:%[0-9]+]]:_(s32) = G_ASHR [[SHL]], [[C]](s32)
+    ; GFX6: [[SITOFP:%[0-9]+]]:_(s64) = G_SITOFP [[ASHR]](s32)
+    ; GFX6: $vgpr0_vgpr1 = COPY [[SITOFP]](s64)
+    ; GFX8-LABEL: name: test_sitofp_s16_to_s64
+    ; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
+    ; GFX8: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX8: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[COPY1]], [[C]](s32)
+    ; GFX8: [[ASHR:%[0-9]+]]:_(s32) = G_ASHR [[SHL]], [[C]](s32)
+    ; GFX8: [[SITOFP:%[0-9]+]]:_(s64) = G_SITOFP [[ASHR]](s32)
+    ; GFX8: $vgpr0_vgpr1 = COPY [[SITOFP]](s64)
+    %0:_(s32) = COPY $vgpr0
+    %1:_(s16) = G_TRUNC %0
+    %2:_(s64) = G_SITOFP %1
+    $vgpr0_vgpr1 = COPY %2
+...
+
+---
+name: test_sitofp_s8_to_s16
+body: |
+  bb.0:
+    liveins: $vgpr0
+
+    ; GFX6-LABEL: name: test_sitofp_s8_to_s16
+    ; GFX6: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
+    ; GFX6: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX6: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[COPY1]], [[C]](s32)
+    ; GFX6: [[ASHR:%[0-9]+]]:_(s32) = G_ASHR [[SHL]], [[C]](s32)
+    ; GFX6: [[SITOFP:%[0-9]+]]:_(s16) = G_SITOFP [[ASHR]](s32)
+    ; GFX6: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[SITOFP]](s16)
+    ; GFX6: $vgpr0 = COPY [[ANYEXT]](s32)
+    ; GFX8-LABEL: name: test_sitofp_s8_to_s16
+    ; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
+    ; GFX8: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX8: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[COPY1]], [[C]](s32)
+    ; GFX8: [[ASHR:%[0-9]+]]:_(s32) = G_ASHR [[SHL]], [[C]](s32)
+    ; GFX8: [[SITOFP:%[0-9]+]]:_(s16) = G_SITOFP [[ASHR]](s32)
+    ; GFX8: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[SITOFP]](s16)
+    ; GFX8: $vgpr0 = COPY [[ANYEXT]](s32)
+    %0:_(s32) = COPY $vgpr0
+    %1:_(s8) = G_TRUNC %0
+    %2:_(s16) = G_SITOFP %1
+    %3:_(s32) = G_ANYEXT %2
+    $vgpr0 = COPY %3
+...
+
+---
+name: test_sitofp_s8_to_s32
+body: |
+  bb.0:
+    liveins: $vgpr0
+
+    ; GFX6-LABEL: name: test_sitofp_s8_to_s32
+    ; GFX6: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
+    ; GFX6: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX6: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[COPY1]], [[C]](s32)
+    ; GFX6: [[ASHR:%[0-9]+]]:_(s32) = G_ASHR [[SHL]], [[C]](s32)
+    ; GFX6: [[SITOFP:%[0-9]+]]:_(s32) = G_SITOFP [[ASHR]](s32)
+    ; GFX6: $vgpr0 = COPY [[SITOFP]](s32)
+    ; GFX8-LABEL: name: test_sitofp_s8_to_s32
+    ; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
+    ; GFX8: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX8: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[COPY1]], [[C]](s32)
+    ; GFX8: [[ASHR:%[0-9]+]]:_(s32) = G_ASHR [[SHL]], [[C]](s32)
+    ; GFX8: [[SITOFP:%[0-9]+]]:_(s32) = G_SITOFP [[ASHR]](s32)
+    ; GFX8: $vgpr0 = COPY [[SITOFP]](s32)
+    %0:_(s32) = COPY $vgpr0
+    %1:_(s8) = G_TRUNC %0
+    %2:_(s32) = G_SITOFP %1
+    $vgpr0 = COPY %2
+...
+
+---
+name: test_sitofp_s8_to_s64
+body: |
+  bb.0:
+    liveins: $vgpr0
+
+    ; GFX6-LABEL: name: test_sitofp_s8_to_s64
+    ; GFX6: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
+    ; GFX6: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX6: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[COPY1]], [[C]](s32)
+    ; GFX6: [[ASHR:%[0-9]+]]:_(s32) = G_ASHR [[SHL]], [[C]](s32)
+    ; GFX6: [[SITOFP:%[0-9]+]]:_(s64) = G_SITOFP [[ASHR]](s32)
+    ; GFX6: $vgpr0_vgpr1 = COPY [[SITOFP]](s64)
+    ; GFX8-LABEL: name: test_sitofp_s8_to_s64
+    ; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
+    ; GFX8: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX8: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[COPY1]], [[C]](s32)
+    ; GFX8: [[ASHR:%[0-9]+]]:_(s32) = G_ASHR [[SHL]], [[C]](s32)
+    ; GFX8: [[SITOFP:%[0-9]+]]:_(s64) = G_SITOFP [[ASHR]](s32)
+    ; GFX8: $vgpr0_vgpr1 = COPY [[SITOFP]](s64)
+    %0:_(s32) = COPY $vgpr0
+    %1:_(s8) = G_TRUNC %0
+    %2:_(s64) = G_SITOFP %1
+    $vgpr0_vgpr1 = COPY %2
+...
diff --git a/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-uitofp.mir b/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-uitofp.mir
index 6fa7d4418a1..4af74abb5df 100644
--- a/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-uitofp.mir
+++ b/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-uitofp.mir
@@ -1,5 +1,6 @@
 # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
-# RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=fiji -run-pass=legalizer -global-isel %s -o - | FileCheck %s
+# RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=tahiti -run-pass=legalizer %s -o - | FileCheck -check-prefix=GFX6 %s
+# RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=fiji -run-pass=legalizer %s -o - | FileCheck -check-prefix=GFX8 %s
 
 ---
 name: test_uitofp_s32_to_s32
@@ -7,10 +8,14 @@ body: |
   bb.0:
     liveins: $vgpr0
 
-    ; CHECK-LABEL: name: test_uitofp_s32_to_s32
-    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
-    ; CHECK: [[UITOFP:%[0-9]+]]:_(s32) = G_UITOFP [[COPY]](s32)
-    ; CHECK: $vgpr0 = COPY [[UITOFP]](s32)
+    ; GFX6-LABEL: name: test_uitofp_s32_to_s32
+    ; GFX6: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX6: [[UITOFP:%[0-9]+]]:_(s32) = G_UITOFP [[COPY]](s32)
+    ; GFX6: $vgpr0 = COPY [[UITOFP]](s32)
+    ; GFX8-LABEL: name: test_uitofp_s32_to_s32
+    ; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX8: [[UITOFP:%[0-9]+]]:_(s32) = G_UITOFP [[COPY]](s32)
+    ; GFX8: $vgpr0 = COPY [[UITOFP]](s32)
     %0:_(s32) = COPY $vgpr0
     %1:_(s32) = G_UITOFP %0
     $vgpr0 = COPY %1
@@ -22,10 +27,14 @@ body: |
   bb.0:
     liveins: $vgpr0
 
-    ; CHECK-LABEL: name: test_uitofp_s32_to_s64
-    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
-    ; CHECK: [[UITOFP:%[0-9]+]]:_(s64) = G_UITOFP [[COPY]](s32)
-    ; CHECK: $vgpr0_vgpr1 = COPY [[UITOFP]](s64)
+    ; GFX6-LABEL: name: test_uitofp_s32_to_s64
+    ; GFX6: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX6: [[UITOFP:%[0-9]+]]:_(s64) = G_UITOFP [[COPY]](s32)
+    ; GFX6: $vgpr0_vgpr1 = COPY [[UITOFP]](s64)
+    ; GFX8-LABEL: name: test_uitofp_s32_to_s64
+    ; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX8: [[UITOFP:%[0-9]+]]:_(s64) = G_UITOFP [[COPY]](s32)
+    ; GFX8: $vgpr0_vgpr1 = COPY [[UITOFP]](s64)
     %0:_(s32) = COPY $vgpr0
     %1:_(s64) = G_UITOFP %0
     $vgpr0_vgpr1 = COPY %1
@@ -37,13 +46,20 @@ body: |
   bb.0:
     liveins: $vgpr0_vgpr1
 
-    ; CHECK-LABEL: name: test_uitofp_v2s32_to_v2s32
-    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
-    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
-    ; CHECK: [[UITOFP:%[0-9]+]]:_(s32) = G_UITOFP [[UV]](s32)
-    ; CHECK: [[UITOFP1:%[0-9]+]]:_(s32) = G_UITOFP [[UV1]](s32)
-    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[UITOFP]](s32), [[UITOFP1]](s32)
-    ; CHECK: $vgpr0_vgpr1 = COPY [[BUILD_VECTOR]](<2 x s32>)
+    ; GFX6-LABEL: name: test_uitofp_v2s32_to_v2s32
+    ; GFX6: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
+    ; GFX6: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
+    ; GFX6: [[UITOFP:%[0-9]+]]:_(s32) = G_UITOFP [[UV]](s32)
+    ; GFX6: [[UITOFP1:%[0-9]+]]:_(s32) = G_UITOFP [[UV1]](s32)
+    ; GFX6: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[UITOFP]](s32), [[UITOFP1]](s32)
+    ; GFX6: $vgpr0_vgpr1 = COPY [[BUILD_VECTOR]](<2 x s32>)
+    ; GFX8-LABEL: name: test_uitofp_v2s32_to_v2s32
+    ; GFX8: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
+    ; GFX8: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
+    ; GFX8: [[UITOFP:%[0-9]+]]:_(s32) = G_UITOFP [[UV]](s32)
+    ; GFX8: [[UITOFP1:%[0-9]+]]:_(s32) = G_UITOFP [[UV1]](s32)
+    ; GFX8: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[UITOFP]](s32), [[UITOFP1]](s32)
+    ; GFX8: $vgpr0_vgpr1 = COPY [[BUILD_VECTOR]](<2 x s32>)
     %0:_(<2 x s32>) = COPY $vgpr0_vgpr1
     %1:_(<2 x s32>) = G_UITOFP %0
     $vgpr0_vgpr1 = COPY %1
@@ -55,37 +71,68 @@ body: |
   bb.0:
     liveins: $vgpr0_vgpr1
 
-    ; CHECK-LABEL: name: test_uitofp_s64_to_s32
-    ; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
-    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
-    ; CHECK: [[C1:%[0-9]+]]:_(s64) = G_CONSTANT i64 0
-    ; CHECK: [[CTLZ_ZERO_UNDEF:%[0-9]+]]:_(s32) = G_CTLZ_ZERO_UNDEF [[COPY]](s64)
-    ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 190
-    ; CHECK: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[C2]], [[CTLZ_ZERO_UNDEF]]
-    ; CHECK: [[ICMP:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[COPY]](s64), [[C1]]
-    ; CHECK: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[ICMP]](s1), [[SUB]], [[C]]
-    ; CHECK: [[C3:%[0-9]+]]:_(s64) = G_CONSTANT i64 9223372036854775807
-    ; CHECK: [[SHL:%[0-9]+]]:_(s64) = G_SHL [[COPY]], [[CTLZ_ZERO_UNDEF]](s32)
-    ; CHECK: [[AND:%[0-9]+]]:_(s64) = G_AND [[SHL]], [[C3]]
-    ; CHECK: [[C4:%[0-9]+]]:_(s64) = G_CONSTANT i64 1099511627775
-    ; CHECK: [[AND1:%[0-9]+]]:_(s64) = G_AND [[AND]], [[C4]]
-    ; CHECK: [[C5:%[0-9]+]]:_(s64) = G_CONSTANT i64 40
-    ; CHECK: [[TRUNC:%[0-9]+]]:_(s32) = G_TRUNC [[C5]](s64)
-    ; CHECK: [[LSHR:%[0-9]+]]:_(s64) = G_LSHR [[AND]], [[TRUNC]](s32)
-    ; CHECK: [[C6:%[0-9]+]]:_(s32) = G_CONSTANT i32 23
-    ; CHECK: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[SELECT]], [[C6]](s32)
-    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s32) = G_TRUNC [[LSHR]](s64)
-    ; CHECK: [[OR:%[0-9]+]]:_(s32) = G_OR [[SHL1]], [[TRUNC1]]
-    ; CHECK: [[C7:%[0-9]+]]:_(s64) = G_CONSTANT i64 549755813888
-    ; CHECK: [[ICMP1:%[0-9]+]]:_(s1) = G_ICMP intpred(ugt), [[AND1]](s64), [[C7]]
-    ; CHECK: [[ICMP2:%[0-9]+]]:_(s1) = G_ICMP intpred(eq), [[AND1]](s64), [[C7]]
-    ; CHECK: [[C8:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
-    ; CHECK: [[AND2:%[0-9]+]]:_(s32) = G_AND [[OR]], [[C8]]
-    ; CHECK: [[SELECT1:%[0-9]+]]:_(s32) = G_SELECT [[ICMP2]](s1), [[AND2]], [[C]]
-    ; CHECK: [[SELECT2:%[0-9]+]]:_(s32) = G_SELECT [[ICMP1]](s1), [[C8]], [[SELECT1]]
-    ; CHECK: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[OR]], [[SELECT2]]
-    ; CHECK: [[UITOFP:%[0-9]+]]:_(s32) = G_UITOFP [[COPY]](s64)
-    ; CHECK: $vgpr0 = COPY [[UITOFP]](s32)
+    ; GFX6-LABEL: name: test_uitofp_s64_to_s32
+    ; GFX6: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
+    ; GFX6: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
+    ; GFX6: [[C1:%[0-9]+]]:_(s64) = G_CONSTANT i64 0
+    ; GFX6: [[CTLZ_ZERO_UNDEF:%[0-9]+]]:_(s32) = G_CTLZ_ZERO_UNDEF [[COPY]](s64)
+    ; GFX6: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 190
+    ; GFX6: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[C2]], [[CTLZ_ZERO_UNDEF]]
+    ; GFX6: [[ICMP:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[COPY]](s64), [[C1]]
+    ; GFX6: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[ICMP]](s1), [[SUB]], [[C]]
+    ; GFX6: [[C3:%[0-9]+]]:_(s64) = G_CONSTANT i64 9223372036854775807
+    ; GFX6: [[SHL:%[0-9]+]]:_(s64) = G_SHL [[COPY]], [[CTLZ_ZERO_UNDEF]](s32)
+    ; GFX6: [[AND:%[0-9]+]]:_(s64) = G_AND [[SHL]], [[C3]]
+    ; GFX6: [[C4:%[0-9]+]]:_(s64) = G_CONSTANT i64 1099511627775
+    ; GFX6: [[AND1:%[0-9]+]]:_(s64) = G_AND [[AND]], [[C4]]
+    ; GFX6: [[C5:%[0-9]+]]:_(s64) = G_CONSTANT i64 40
+    ; GFX6: [[TRUNC:%[0-9]+]]:_(s32) = G_TRUNC [[C5]](s64)
+    ; GFX6: [[LSHR:%[0-9]+]]:_(s64) = G_LSHR [[AND]], [[TRUNC]](s32)
+    ; GFX6: [[C6:%[0-9]+]]:_(s32) = G_CONSTANT i32 23
+    ; GFX6: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[SELECT]], [[C6]](s32)
+    ; GFX6: [[TRUNC1:%[0-9]+]]:_(s32) = G_TRUNC [[LSHR]](s64)
+    ; GFX6: [[OR:%[0-9]+]]:_(s32) = G_OR [[SHL1]], [[TRUNC1]]
+    ; GFX6: [[C7:%[0-9]+]]:_(s64) = G_CONSTANT i64 549755813888
+    ; GFX6: [[ICMP1:%[0-9]+]]:_(s1) = G_ICMP intpred(ugt), [[AND1]](s64), [[C7]]
+    ; GFX6: [[ICMP2:%[0-9]+]]:_(s1) = G_ICMP intpred(eq), [[AND1]](s64), [[C7]]
+    ; GFX6: [[C8:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
+    ; GFX6: [[AND2:%[0-9]+]]:_(s32) = G_AND [[OR]], [[C8]]
+    ; GFX6: [[SELECT1:%[0-9]+]]:_(s32) = G_SELECT [[ICMP2]](s1), [[AND2]], [[C]]
+    ; GFX6: [[SELECT2:%[0-9]+]]:_(s32) = G_SELECT [[ICMP1]](s1), [[C8]], [[SELECT1]]
+    ; GFX6: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[OR]], [[SELECT2]]
+    ; GFX6: [[UITOFP:%[0-9]+]]:_(s32) = G_UITOFP [[COPY]](s64)
+    ; GFX6: $vgpr0 = COPY [[UITOFP]](s32)
+    ; GFX8-LABEL: name: test_uitofp_s64_to_s32
+    ; GFX8: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
+    ; GFX8: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
+    ; GFX8: [[C1:%[0-9]+]]:_(s64) = G_CONSTANT i64 0
+    ; GFX8: [[CTLZ_ZERO_UNDEF:%[0-9]+]]:_(s32) = G_CTLZ_ZERO_UNDEF [[COPY]](s64)
+    ; GFX8: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 190
+    ; GFX8: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[C2]], [[CTLZ_ZERO_UNDEF]]
+    ; GFX8: [[ICMP:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[COPY]](s64), [[C1]]
+    ; GFX8: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[ICMP]](s1), [[SUB]], [[C]]
+    ; GFX8: [[C3:%[0-9]+]]:_(s64) = G_CONSTANT i64 9223372036854775807
+    ; GFX8: [[SHL:%[0-9]+]]:_(s64) = G_SHL [[COPY]], [[CTLZ_ZERO_UNDEF]](s32)
+    ; GFX8: [[AND:%[0-9]+]]:_(s64) = G_AND [[SHL]], [[C3]]
+    ; GFX8: [[C4:%[0-9]+]]:_(s64) = G_CONSTANT i64 1099511627775
+    ; GFX8: [[AND1:%[0-9]+]]:_(s64) = G_AND [[AND]], [[C4]]
+    ; GFX8: [[C5:%[0-9]+]]:_(s64) = G_CONSTANT i64 40
+    ; GFX8: [[TRUNC:%[0-9]+]]:_(s32) = G_TRUNC [[C5]](s64)
+    ; GFX8: [[LSHR:%[0-9]+]]:_(s64) = G_LSHR [[AND]], [[TRUNC]](s32)
+    ; GFX8: [[C6:%[0-9]+]]:_(s32) = G_CONSTANT i32 23
+    ; GFX8: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[SELECT]], [[C6]](s32)
+    ; GFX8: [[TRUNC1:%[0-9]+]]:_(s32) = G_TRUNC [[LSHR]](s64)
+    ; GFX8: [[OR:%[0-9]+]]:_(s32) = G_OR [[SHL1]], [[TRUNC1]]
+    ; GFX8: [[C7:%[0-9]+]]:_(s64) = G_CONSTANT i64 549755813888
+    ; GFX8: [[ICMP1:%[0-9]+]]:_(s1) = G_ICMP intpred(ugt), [[AND1]](s64), [[C7]]
+    ; GFX8: [[ICMP2:%[0-9]+]]:_(s1) = G_ICMP intpred(eq), [[AND1]](s64), [[C7]]
+    ; GFX8: [[C8:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
+    ; GFX8: [[AND2:%[0-9]+]]:_(s32) = G_AND [[OR]], [[C8]]
+    ; GFX8: [[SELECT1:%[0-9]+]]:_(s32) = G_SELECT [[ICMP2]](s1), [[AND2]], [[C]]
+    ; GFX8: [[SELECT2:%[0-9]+]]:_(s32) = G_SELECT [[ICMP1]](s1), [[C8]], [[SELECT1]]
+    ; GFX8: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[OR]], [[SELECT2]]
+    ; GFX8: [[UITOFP:%[0-9]+]]:_(s32) = G_UITOFP [[COPY]](s64)
+    ; GFX8: $vgpr0 = COPY [[UITOFP]](s32)
     %0:_(s64) = COPY $vgpr0_vgpr1
     %1:_(s32) = G_UITOFP %0
     $vgpr0 = COPY %1
@@ -97,33 +144,185 @@ body: |
   bb.0:
     liveins: $vgpr0_vgpr1
 
-    ; CHECK-LABEL: name: test_uitofp_s64_to_s64
-    ; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
-    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](s64)
-    ; CHECK: [[UITOFP:%[0-9]+]]:_(s64) = G_UITOFP [[UV1]](s32)
-    ; CHECK: [[UITOFP1:%[0-9]+]]:_(s64) = G_UITOFP [[UV]](s32)
-    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 32
-    ; CHECK: [[INT:%[0-9]+]]:_(s64) = G_INTRINSIC intrinsic(@llvm.amdgcn.ldexp), [[UITOFP]](s64), [[C]](s32)
-    ; CHECK: [[FADD:%[0-9]+]]:_(s64) = G_FADD [[INT]], [[UITOFP1]]
-    ; CHECK: $vgpr0_vgpr1 = COPY [[FADD]](s64)
+    ; GFX6-LABEL: name: test_uitofp_s64_to_s64
+    ; GFX6: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
+    ; GFX6: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](s64)
+    ; GFX6: [[UITOFP:%[0-9]+]]:_(s64) = G_UITOFP [[UV1]](s32)
+    ; GFX6: [[UITOFP1:%[0-9]+]]:_(s64) = G_UITOFP [[UV]](s32)
+    ; GFX6: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 32
+    ; GFX6: [[INT:%[0-9]+]]:_(s64) = G_INTRINSIC intrinsic(@llvm.amdgcn.ldexp), [[UITOFP]](s64), [[C]](s32)
+    ; GFX6: [[FADD:%[0-9]+]]:_(s64) = G_FADD [[INT]], [[UITOFP1]]
+    ; GFX6: $vgpr0_vgpr1 = COPY [[FADD]](s64)
+    ; GFX8-LABEL: name: test_uitofp_s64_to_s64
+    ; GFX8: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
+    ; GFX8: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](s64)
+    ; GFX8: [[UITOFP:%[0-9]+]]:_(s64) = G_UITOFP [[UV1]](s32)
+    ; GFX8: [[UITOFP1:%[0-9]+]]:_(s64) = G_UITOFP [[UV]](s32)
+    ; GFX8: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 32
+    ; GFX8: [[INT:%[0-9]+]]:_(s64) = G_INTRINSIC intrinsic(@llvm.amdgcn.ldexp), [[UITOFP]](s64), [[C]](s32)
+    ; GFX8: [[FADD:%[0-9]+]]:_(s64) = G_FADD [[INT]], [[UITOFP1]]
+    ; GFX8: $vgpr0_vgpr1 = COPY [[FADD]](s64)
     %0:_(s64) = COPY $vgpr0_vgpr1
     %1:_(s64) = G_UITOFP %0
     $vgpr0_vgpr1 = COPY %1
 ...
 
 ---
+name: test_uitofp_s16_to_s16
+body: |
+  bb.0:
+    liveins: $vgpr0
+
+    ; GFX6-LABEL: name: test_uitofp_s16_to_s16
+    ; GFX6: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX6: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 65535
+    ; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
+    ; GFX6: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY1]], [[C]]
+    ; GFX6: [[UITOFP:%[0-9]+]]:_(s16) = G_UITOFP [[AND]](s32)
+    ; GFX6: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[UITOFP]](s16)
+    ; GFX6: $vgpr0 = COPY [[ANYEXT]](s32)
+    ; GFX8-LABEL: name: test_uitofp_s16_to_s16
+    ; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX8: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[COPY]](s32)
+    ; GFX8: [[UITOFP:%[0-9]+]]:_(s16) = G_UITOFP [[TRUNC]](s16)
+    ; GFX8: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[UITOFP]](s16)
+    ; GFX8: $vgpr0 = COPY [[ANYEXT]](s32)
+    %0:_(s32) = COPY $vgpr0
+    %1:_(s16) = G_TRUNC %0
+    %2:_(s16) = G_UITOFP %1
+    %3:_(s32) = G_ANYEXT %2
+    $vgpr0 = COPY %3
+...
+
+---
 name: test_uitofp_s16_to_s32
 body: |
   bb.0:
     liveins: $vgpr0
 
-    ; CHECK-LABEL: name: test_uitofp_s16_to_s32
-    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
-    ; CHECK: [[UITOFP:%[0-9]+]]:_(s16) = G_UITOFP [[COPY]](s32)
-    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[UITOFP]](s16)
-    ; CHECK: $vgpr0 = COPY [[ANYEXT]](s32)
+    ; GFX6-LABEL: name: test_uitofp_s16_to_s32
+    ; GFX6: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX6: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 65535
+    ; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
+    ; GFX6: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY1]], [[C]]
+    ; GFX6: [[UITOFP:%[0-9]+]]:_(s32) = G_UITOFP [[AND]](s32)
+    ; GFX6: $vgpr0 = COPY [[UITOFP]](s32)
+    ; GFX8-LABEL: name: test_uitofp_s16_to_s32
+    ; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX8: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 65535
+    ; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
+    ; GFX8: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY1]], [[C]]
+    ; GFX8: [[UITOFP:%[0-9]+]]:_(s32) = G_UITOFP [[AND]](s32)
+    ; GFX8: $vgpr0 = COPY [[UITOFP]](s32)
     %0:_(s32) = COPY $vgpr0
-    %1:_(s16) = G_UITOFP %0
-    %2:_(s32) = G_ANYEXT %1
+    %1:_(s16) = G_TRUNC %0
+    %2:_(s32) = G_UITOFP %1
     $vgpr0 = COPY %2
 ...
+
+---
+name: test_uitofp_s16_to_s64
+body: |
+  bb.0:
+    liveins: $vgpr0
+
+    ; GFX6-LABEL: name: test_uitofp_s16_to_s64
+    ; GFX6: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX6: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 65535
+    ; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
+    ; GFX6: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY1]], [[C]]
+    ; GFX6: [[UITOFP:%[0-9]+]]:_(s64) = G_UITOFP [[AND]](s32)
+    ; GFX6: $vgpr0_vgpr1 = COPY [[UITOFP]](s64)
+    ; GFX8-LABEL: name: test_uitofp_s16_to_s64
+    ; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX8: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 65535
+    ; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
+    ; GFX8: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY1]], [[C]]
+    ; GFX8: [[UITOFP:%[0-9]+]]:_(s64) = G_UITOFP [[AND]](s32)
+    ; GFX8: $vgpr0_vgpr1 = COPY [[UITOFP]](s64)
+    %0:_(s32) = COPY $vgpr0
+    %1:_(s16) = G_TRUNC %0
+    %2:_(s64) = G_UITOFP %1
+    $vgpr0_vgpr1 = COPY %2
+...
+
+---
+name: test_uitofp_s8_to_s16
+body: |
+  bb.0:
+    liveins: $vgpr0
+
+    ; GFX6-LABEL: name: test_uitofp_s8_to_s16
+    ; GFX6: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX6: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 255
+    ; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
+    ; GFX6: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY1]], [[C]]
+    ; GFX6: [[UITOFP:%[0-9]+]]:_(s16) = G_UITOFP [[AND]](s32)
+    ; GFX6: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[UITOFP]](s16)
+    ; GFX6: $vgpr0 = COPY [[ANYEXT]](s32)
+    ; GFX8-LABEL: name: test_uitofp_s8_to_s16
+    ; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX8: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 255
+    ; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
+    ; GFX8: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY1]], [[C]]
+    ; GFX8: [[UITOFP:%[0-9]+]]:_(s16) = G_UITOFP [[AND]](s32)
+    ; GFX8: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[UITOFP]](s16)
+    ; GFX8: $vgpr0 = COPY [[ANYEXT]](s32)
+    %0:_(s32) = COPY $vgpr0
+    %1:_(s8) = G_TRUNC %0
+    %2:_(s16) = G_UITOFP %1
+    %3:_(s32) = G_ANYEXT %2
+    $vgpr0 = COPY %3
+...
+
+---
+name: test_uitofp_s8_to_s32
+body: |
+  bb.0:
+    liveins: $vgpr0
+
+    ; GFX6-LABEL: name: test_uitofp_s8_to_s32
+    ; GFX6: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX6: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 255
+    ; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
+    ; GFX6: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY1]], [[C]]
+    ; GFX6: [[UITOFP:%[0-9]+]]:_(s32) = G_UITOFP [[AND]](s32)
+    ; GFX6: $vgpr0 = COPY [[UITOFP]](s32)
+    ; GFX8-LABEL: name: test_uitofp_s8_to_s32
+    ; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX8: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 255
+    ; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
+    ; GFX8: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY1]], [[C]]
+    ; GFX8: [[UITOFP:%[0-9]+]]:_(s32) = G_UITOFP [[AND]](s32)
+    ; GFX8: $vgpr0 = COPY [[UITOFP]](s32)
+    %0:_(s32) = COPY $vgpr0
+    %1:_(s8) = G_TRUNC %0
+    %2:_(s32) = G_UITOFP %1
+    $vgpr0 = COPY %2
+...
+
+---
+name: test_uitofp_s8_to_s64
+body: |
+  bb.0:
+    liveins: $vgpr0
+
+    ; GFX6-LABEL: name: test_uitofp_s8_to_s64
+    ; GFX6: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX6: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 255
+    ; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
+    ; GFX6: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY1]], [[C]]
+    ; GFX6: [[UITOFP:%[0-9]+]]:_(s64) = G_UITOFP [[AND]](s32)
+    ; GFX6: $vgpr0_vgpr1 = COPY [[UITOFP]](s64)
+    ; GFX8-LABEL: name: test_uitofp_s8_to_s64
+    ; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX8: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 255
+    ; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
+    ; GFX8: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY1]], [[C]]
+    ; GFX8: [[UITOFP:%[0-9]+]]:_(s64) = G_UITOFP [[AND]](s32)
+    ; GFX8: $vgpr0_vgpr1 = COPY [[UITOFP]](s64)
+    %0:_(s32) = COPY $vgpr0
+    %1:_(s8) = G_TRUNC %0
+    %2:_(s64) = G_UITOFP %1
+    $vgpr0_vgpr1 = COPY %2
+...