[InstCombine] move and improve tests for cmp-intrinsic; NFC

llvm-svn: 307022

2 files changed, 87 insertions, 60 deletions

diff --git a/llvm/test/Transforms/InstCombine/cmp-intrinsic.ll b/llvm/test/Transforms/InstCombine/cmp-intrinsic.ll
index 723a97f6ea1..7fc1d12916b 100644
--- a/llvm/test/Transforms/InstCombine/cmp-intrinsic.ll
+++ b/llvm/test/Transforms/InstCombine/cmp-intrinsic.ll
@@ -3,6 +3,13 @@
 declare i16 @llvm.bswap.i16(i16)
 declare i32 @llvm.bswap.i32(i32)
 declare <2 x i64> @llvm.bswap.v2i64(<2 x i64>)
+declare i33 @llvm.cttz.i33(i33, i1)
+declare i32 @llvm.ctlz.i32(i32, i1)
+declare i8 @llvm.ctpop.i8(i8)
+declare i11 @llvm.ctpop.i11(i11)
+declare <2 x i32> @llvm.cttz.v2i32(<2 x i32>, i1)
+declare <2 x i32> @llvm.ctlz.v2i32(<2 x i32>, i1)
+declare <2 x i32> @llvm.ctpop.v2i32(<2 x i32>)
 
 define i1 @bswap_eq_i16(i16 %x) {
 ; CHECK-LABEL: @bswap_eq_i16(
@@ -34,3 +41,83 @@ define <2 x i1> @bswap_eq_v2i64(<2 x i64> %x) {
   ret <2 x i1> %cmp
 }
 
+define i1 @ctlz_eq_bitwidth_i32(i32 %x) {
+; CHECK-LABEL: @ctlz_eq_bitwidth_i32(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 %x, 0
+; CHECK-NEXT:    ret i1 [[CMP]]
+;
+  %lz = tail call i32 @llvm.ctlz.i32(i32 %x, i1 false)
+  %cmp = icmp eq i32 %lz, 32
+  ret i1 %cmp
+}
+
+define <2 x i1> @ctlz_ne_bitwidth_v2i32(<2 x i32> %a) {
+; CHECK-LABEL: @ctlz_ne_bitwidth_v2i32(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp ne <2 x i32> %a, zeroinitializer
+; CHECK-NEXT:    ret <2 x i1> [[CMP]]
+;
+  %x = tail call <2 x i32> @llvm.ctlz.v2i32(<2 x i32> %a, i1 false)
+  %cmp = icmp ne <2 x i32> %x, <i32 32, i32 32>
+  ret <2 x i1> %cmp
+}
+
+define i1 @cttz_ne_bitwidth_i33(i33 %x) {
+; CHECK-LABEL: @cttz_ne_bitwidth_i33(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp ne i33 %x, 0
+; CHECK-NEXT:    ret i1 [[CMP]]
+;
+  %tz = tail call i33 @llvm.cttz.i33(i33 %x, i1 false)
+  %cmp = icmp ne i33 %tz, 33
+  ret i1 %cmp
+}
+
+define <2 x i1> @cttz_eq_bitwidth_v2i32(<2 x i32> %a) {
+; CHECK-LABEL: @cttz_eq_bitwidth_v2i32(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp eq <2 x i32> %a, zeroinitializer
+; CHECK-NEXT:    ret <2 x i1> [[CMP]]
+;
+  %x = tail call <2 x i32> @llvm.cttz.v2i32(<2 x i32> %a, i1 false)
+  %cmp = icmp eq <2 x i32> %x, <i32 32, i32 32>
+  ret <2 x i1> %cmp
+}
+
+define i1 @ctpop_eq_zero_i11(i11 %x) {
+; CHECK-LABEL: @ctpop_eq_zero_i11(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i11 %x, 0
+; CHECK-NEXT:    ret i1 [[CMP]]
+;
+  %pop = tail call i11 @llvm.ctpop.i11(i11 %x)
+  %cmp = icmp eq i11 %pop, 0
+  ret i1 %cmp
+}
+
+define <2 x i1> @ctpop_ne_zero_v2i32(<2 x i32> %x) {
+; CHECK-LABEL: @ctpop_ne_zero_v2i32(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp ne <2 x i32> %x, zeroinitializer
+; CHECK-NEXT:    ret <2 x i1> [[CMP]]
+;
+  %pop = tail call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> %x)
+  %cmp = icmp ne <2 x i32> %pop, zeroinitializer
+  ret <2 x i1> %cmp
+}
+
+define i1 @ctpop_eq_bitwidth_i8(i8 %x) {
+; CHECK-LABEL: @ctpop_eq_bitwidth_i8(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i8 %x, -1
+; CHECK-NEXT:    ret i1 [[CMP]]
+;
+  %pop = tail call i8 @llvm.ctpop.i8(i8 %x)
+  %cmp = icmp eq i8 %pop, 8
+  ret i1 %cmp
+}
+
+define <2 x i1> @ctpop_ne_bitwidth_v2i32(<2 x i32> %x) {
+; CHECK-LABEL: @ctpop_ne_bitwidth_v2i32(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp ne <2 x i32> %x, <i32 -1, i32 -1>
+; CHECK-NEXT:    ret <2 x i1> [[CMP]]
+;
+  %pop = tail call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> %x)
+  %cmp = icmp ne <2 x i32> %pop, <i32 32, i32 32>
+  ret <2 x i1> %cmp
+}
+
diff --git a/llvm/test/Transforms/InstCombine/intrinsics.ll b/llvm/test/Transforms/InstCombine/intrinsics.ll
index c294d79f15e..8d2f06edcaf 100644
--- a/llvm/test/Transforms/InstCombine/intrinsics.ll
+++ b/llvm/test/Transforms/InstCombine/intrinsics.ll
@@ -475,66 +475,6 @@ define <2 x i1> @ctlz_knownbits3_vec(<2 x i8> %arg) {
   ret <2 x i1> %res
 }
 
-define void @cmp.simplify(i32 %a, i32 %b, i1* %c) {
-  %lz = tail call i32 @llvm.ctlz.i32(i32 %a, i1 false) nounwind readnone
-  %lz.cmp = icmp eq i32 %lz, 32
-  store volatile i1 %lz.cmp, i1* %c
-  %tz = tail call i32 @llvm.cttz.i32(i32 %a, i1 false) nounwind readnone
-  %tz.cmp = icmp ne i32 %tz, 32
-  store volatile i1 %tz.cmp, i1* %c
-  %pop0 = tail call i32 @llvm.ctpop.i32(i32 %b) nounwind readnone
-  %pop0.cmp = icmp eq i32 %pop0, 0
-  store volatile i1 %pop0.cmp, i1* %c
-  %pop1 = tail call i32 @llvm.ctpop.i32(i32 %b) nounwind readnone
-  %pop1.cmp = icmp eq i32 %pop1, 32
-  store volatile i1 %pop1.cmp, i1* %c
-  ret void
-; CHECK: @cmp.simplify
-; CHECK-NEXT: %lz.cmp = icmp eq i32 %a, 0
-; CHECK-NEXT: store volatile i1 %lz.cmp, i1* %c
-; CHECK-NEXT: %tz.cmp = icmp ne i32 %a, 0
-; CHECK-NEXT: store volatile i1 %tz.cmp, i1* %c
-; CHECK-NEXT: %pop0.cmp = icmp eq i32 %b, 0
-; CHECK-NEXT: store volatile i1 %pop0.cmp, i1* %c
-; CHECK-NEXT: %pop1.cmp = icmp eq i32 %b, -1
-; CHECK-NEXT: store volatile i1 %pop1.cmp, i1* %c
-}
-
-define <2 x i1> @ctlz_cmp_vec(<2 x i32> %a) {
-; CHECK-LABEL: @ctlz_cmp_vec(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp eq <2 x i32> %a, zeroinitializer
-; CHECK-NEXT:    ret <2 x i1> [[CMP]]
-;
-  %x = tail call <2 x i32> @llvm.ctlz.v2i32(<2 x i32> %a, i1 false) nounwind readnone
-  %cmp = icmp eq <2 x i32> %x, <i32 32, i32 32>
-  ret <2 x i1> %cmp
-}
-
-define <2 x i1> @cttz_cmp_vec(<2 x i32> %a) {
-; CHECK-LABEL: @cttz_cmp_vec(
-; CHECK-NEXT:    [[CMP:%.*]] = icmp ne <2 x i32> %a, zeroinitializer
-; CHECK-NEXT:    ret <2 x i1> [[CMP]]
-;
-  %x = tail call <2 x i32> @llvm.cttz.v2i32(<2 x i32> %a, i1 false) nounwind readnone
-  %cmp = icmp ne <2 x i32> %x, <i32 32, i32 32>
-  ret <2 x i1> %cmp
-}
-
-define void @ctpop_cmp_vec(<2 x i32> %a, <2 x i1>* %b) {
-  %pop0 = tail call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> %a) nounwind readnone
-  %pop0.cmp = icmp eq <2 x i32> %pop0, zeroinitializer
-  store volatile <2 x i1> %pop0.cmp, <2 x i1>* %b
-  %pop1 = tail call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> %a) nounwind readnone
-  %pop1.cmp = icmp eq <2 x i32> %pop1, < i32 32, i32 32 >
-  store volatile <2 x i1> %pop1.cmp, <2 x i1>* %b
-  ret void
-; CHECK-LABEL: @ctpop_cmp_vec(
-; CHECK-NEXT: %pop0.cmp = icmp eq <2 x i32> %a, zeroinitializer
-; CHECK-NEXT: store volatile <2 x i1> %pop0.cmp, <2 x i1>* %b
-; CHECK-NEXT: %pop1.cmp = icmp eq <2 x i32> %a, <i32 -1, i32 -1>
-; CHECK-NEXT: store volatile <2 x i1> %pop1.cmp, <2 x i1>* %b
-}
-
 define i32 @ctlz_undef(i32 %Value) {
 ; CHECK-LABEL: @ctlz_undef(
 ; CHECK-NEXT:    ret i32 undef