AMDGPU: Remove 24-bit intrinsics

The known bit matching code seems to work reasonably well,
so these shouldn't really be needed.

llvm-svn: 259180

6 files changed, 5 insertions, 110 deletions

diff --git a/llvm/test/CodeGen/AMDGPU/llvm.AMDGPU.imad24.ll b/llvm/test/CodeGen/AMDGPU/llvm.AMDGPU.imad24.ll
deleted file mode 100644
index 42102e30f07..00000000000
--- a/llvm/test/CodeGen/AMDGPU/llvm.AMDGPU.imad24.ll
+++ /dev/null
@@ -1,22 +0,0 @@
-; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
-; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
-; RUN: llc -march=r600 -mcpu=cayman -verify-machineinstrs < %s | FileCheck -check-prefix=CM -check-prefix=FUNC %s
-; RUN: llc -march=r600 -mcpu=redwood -verify-machineinstrs < %s | FileCheck -check-prefix=R600 -check-prefix=FUNC %s
-; XUN: llc -march=r600 -mcpu=r600 -verify-machineinstrs < %s | FileCheck -check-prefix=R600 -check-prefix=FUNC %s
-; XUN: llc -march=r600 -mcpu=r770 -verify-machineinstrs < %s | FileCheck -check-prefix=R600 -check-prefix=FUNC %s
-
-; FIXME: Store of i32 seems to be broken pre-EG somehow?
-
-declare i32 @llvm.AMDGPU.imad24(i32, i32, i32) nounwind readnone
-
-; FUNC-LABEL: {{^}}test_imad24:
-; SI: v_mad_i32_i24
-; CM: MULADD_INT24
-; R600: MULLO_INT
-; R600: ADD_INT
-define void @test_imad24(i32 addrspace(1)* %out, i32 %src0, i32 %src1, i32 %src2) nounwind {
-  %mad = call i32 @llvm.AMDGPU.imad24(i32 %src0, i32 %src1, i32 %src2) nounwind readnone
-  store i32 %mad, i32 addrspace(1)* %out, align 4
-  ret void
-}
-
diff --git a/llvm/test/CodeGen/AMDGPU/llvm.AMDGPU.imul24.ll b/llvm/test/CodeGen/AMDGPU/llvm.AMDGPU.imul24.ll
deleted file mode 100644
index fdc1172260b..00000000000
--- a/llvm/test/CodeGen/AMDGPU/llvm.AMDGPU.imul24.ll
+++ /dev/null
@@ -1,16 +0,0 @@
-; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
-; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
-; RUN: llc -march=r600 -mcpu=cayman -verify-machineinstrs < %s | FileCheck -check-prefix=CM -check-prefix=FUNC %s
-; RUN: llc -march=r600 -mcpu=redwood -verify-machineinstrs < %s | FileCheck -check-prefix=R600 -check-prefix=FUNC %s
-
-declare i32 @llvm.AMDGPU.imul24(i32, i32) nounwind readnone
-
-; FUNC-LABEL: {{^}}test_imul24:
-; SI: v_mul_i32_i24
-; CM: MUL_INT24
-; R600: MULLO_INT
-define void @test_imul24(i32 addrspace(1)* %out, i32 %src0, i32 %src1) nounwind {
-  %mul = call i32 @llvm.AMDGPU.imul24(i32 %src0, i32 %src1) nounwind readnone
-  store i32 %mul, i32 addrspace(1)* %out, align 4
-  ret void
-}
diff --git a/llvm/test/CodeGen/AMDGPU/llvm.AMDGPU.umad24.ll b/llvm/test/CodeGen/AMDGPU/llvm.AMDGPU.umad24.ll
deleted file mode 100644
index 77a073b0cb0..00000000000
--- a/llvm/test/CodeGen/AMDGPU/llvm.AMDGPU.umad24.ll
+++ /dev/null
@@ -1,38 +0,0 @@
-; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
-; RUN: llc -march=r600 -mcpu=cayman -verify-machineinstrs < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s
-; RUN: llc -march=r600 -mcpu=redwood -verify-machineinstrs < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s
-; XUN: llc -march=r600 -mcpu=r600 -verify-machineinstrs < %s | FileCheck -check-prefix=R600 -check-prefix=FUNC %s
-; XUN: llc -march=r600 -mcpu=rv770 -verify-machineinstrs < %s | FileCheck -check-prefix=R600 -check-prefix=FUNC %s
-
-declare i32 @llvm.AMDGPU.umad24(i32, i32, i32) nounwind readnone
-declare i32 @llvm.r600.read.tidig.x() nounwind readnone
-
-; FUNC-LABEL: {{^}}test_umad24:
-; SI: v_mad_u32_u24
-; EG: MULADD_UINT24
-; R600: MULLO_UINT
-; R600: ADD_INT
-define void @test_umad24(i32 addrspace(1)* %out, i32 %src0, i32 %src1, i32 %src2) nounwind {
-  %mad = call i32 @llvm.AMDGPU.umad24(i32 %src0, i32 %src1, i32 %src2) nounwind readnone
-  store i32 %mad, i32 addrspace(1)* %out, align 4
-  ret void
-}
-
-; FUNC-LABEL: {{^}}commute_umad24:
-; SI-DAG: buffer_load_dword [[SRC0:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
-; SI-DAG: buffer_load_dword [[SRC2:v[0-9]+]], {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:4
-; SI: v_mad_u32_u24 [[RESULT:v[0-9]+]], 4, [[SRC0]], [[SRC2]]
-; SI: buffer_store_dword [[RESULT]]
-define void @commute_umad24(i32 addrspace(1)* %out, i32 addrspace(1)* %in) nounwind {
-  %tid = call i32 @llvm.r600.read.tidig.x() nounwind readnone
-  %out.gep = getelementptr i32, i32 addrspace(1)* %out, i32 %tid
-  %src0.gep = getelementptr i32, i32 addrspace(1)* %out, i32 %tid
-  %src2.gep = getelementptr i32, i32 addrspace(1)* %src0.gep, i32 1
-
-  %src0 = load i32, i32 addrspace(1)* %src0.gep, align 4
-  %src2 = load i32, i32 addrspace(1)* %src2.gep, align 4
-  %mad = call i32 @llvm.AMDGPU.umad24(i32 %src0, i32 4, i32 %src2) nounwind readnone
-  store i32 %mad, i32 addrspace(1)* %out.gep, align 4
-  ret void
-}
-
diff --git a/llvm/test/CodeGen/AMDGPU/llvm.AMDGPU.umul24.ll b/llvm/test/CodeGen/AMDGPU/llvm.AMDGPU.umul24.ll
deleted file mode 100644
index 76624a078b3..00000000000
--- a/llvm/test/CodeGen/AMDGPU/llvm.AMDGPU.umul24.ll
+++ /dev/null
@@ -1,18 +0,0 @@
-; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s
-; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s
-; RUN: llc -march=r600 -mcpu=cayman -verify-machineinstrs < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s
-; RUN: llc -march=r600 -mcpu=redwood -verify-machineinstrs < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s
-; XUN: llc -march=r600 -mcpu=r600 -verify-machineinstrs < %s | FileCheck -check-prefix=R600 -check-prefix=FUNC %s
-; XUN: llc -march=r600 -mcpu=r770 -verify-machineinstrs < %s | FileCheck -check-prefix=R600 -check-prefix=FUNC %s
-
-declare i32 @llvm.AMDGPU.umul24(i32, i32) nounwind readnone
-
-; FUNC-LABEL: {{^}}test_umul24:
-; SI: v_mul_u32_u24
-; R600: MUL_UINT24
-; R600: MULLO_UINT
-define void @test_umul24(i32 addrspace(1)* %out, i32 %src0, i32 %src1) nounwind {
-  %mul = call i32 @llvm.AMDGPU.umul24(i32 %src0, i32 %src1) nounwind readnone
-  store i32 %mul, i32 addrspace(1)* %out, align 4
-  ret void
-}
diff --git a/llvm/test/CodeGen/AMDGPU/mad_int24.ll b/llvm/test/CodeGen/AMDGPU/mad_int24.ll
index 86d75a63ca4..def14c10d42 100644
--- a/llvm/test/CodeGen/AMDGPU/mad_int24.ll
+++ b/llvm/test/CodeGen/AMDGPU/mad_int24.ll
@@ -3,8 +3,6 @@
 ; RUN: llc < %s -march=amdgcn -mcpu=SI -verify-machineinstrs | FileCheck %s --check-prefix=SI --check-prefix=FUNC
 ; RUN: llc < %s -march=amdgcn -mcpu=tonga -verify-machineinstrs | FileCheck %s --check-prefix=SI --check-prefix=FUNC
 
-declare i32 @llvm.AMDGPU.imul24(i32, i32) nounwind readnone
-
 ; FUNC-LABEL: {{^}}i32_mad24:
 ; Signed 24-bit multiply is not supported on pre-Cayman GPUs.
 ; EG: MULLO_INT
@@ -24,12 +22,3 @@ entry:
   store i32 %3, i32 addrspace(1)* %out
   ret void
 }
-
-; FUNC-LABEL: @test_imul24
-; SI: v_mad_i32_i24
-define void @test_imul24(i32 addrspace(1)* %out, i32 %src0, i32 %src1, i32 %src2) nounwind {
-  %mul = call i32 @llvm.AMDGPU.imul24(i32 %src0, i32 %src1) nounwind readnone
-  %add = add i32 %mul, %src2
-  store i32 %add, i32 addrspace(1)* %out, align 4
-  ret void
-}
diff --git a/llvm/test/CodeGen/AMDGPU/use-sgpr-multiple-times.ll b/llvm/test/CodeGen/AMDGPU/use-sgpr-multiple-times.ll
index 87b925a24a0..e92a4fda10b 100644
--- a/llvm/test/CodeGen/AMDGPU/use-sgpr-multiple-times.ll
+++ b/llvm/test/CodeGen/AMDGPU/use-sgpr-multiple-times.ll
@@ -4,7 +4,7 @@
 declare float @llvm.fma.f32(float, float, float) #1
 declare double @llvm.fma.f64(double, double, double) #1
 declare float @llvm.fmuladd.f32(float, float, float) #1
-declare i32 @llvm.AMDGPU.imad24(i32, i32, i32) #1
+declare float @llvm.amdgcn.div.fixup.f32(float, float, float) #1
 
 
 ; GCN-LABEL: {{^}}test_sgpr_use_twice_binop:
@@ -118,11 +118,11 @@ define void @test_sgpr_use_twice_ternary_op_a_imm_a(float addrspace(1)* %out, fl
 ; Don't use fma since fma c, x, y is canonicalized to fma x, c, y
 ; GCN-LABEL: {{^}}test_sgpr_use_twice_ternary_op_imm_a_a:
 ; GCN: s_load_dword [[SGPR:s[0-9]+]]
-; GCN: v_mad_i32_i24 [[RESULT:v[0-9]+]], 2, [[SGPR]], [[SGPR]]
+; GCN: v_div_fixup_f32 [[RESULT:v[0-9]+]], 2.0, [[SGPR]], [[SGPR]]
 ; GCN: buffer_store_dword [[RESULT]]
-define void @test_sgpr_use_twice_ternary_op_imm_a_a(i32 addrspace(1)* %out, i32 %a) #0 {
-  %fma = call i32 @llvm.AMDGPU.imad24(i32 2, i32 %a, i32 %a) #1
-  store i32 %fma, i32 addrspace(1)* %out, align 4
+define void @test_sgpr_use_twice_ternary_op_imm_a_a(float addrspace(1)* %out, float %a) #0 {
+  %val = call float @llvm.amdgcn.div.fixup.f32(float 2.0, float %a, float %a) #1
+  store float %val, float addrspace(1)* %out, align 4
   ret void
 }