diff options
| -rw-r--r-- | llvm/test/Transforms/InstCombine/bswap-fold.ll | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstCombine/bswap-fold.ll b/llvm/test/Transforms/InstCombine/bswap-fold.ll index 845e0eab3fa..9a2cf5590ad 100644 --- a/llvm/test/Transforms/InstCombine/bswap-fold.ll +++ b/llvm/test/Transforms/InstCombine/bswap-fold.ll @@ -1,3 +1,4 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -instcombine -S | FileCheck %s ; rdar://5992453 @@ -280,6 +281,68 @@ define <2 x i32> @bs_xor32ivec(<2 x i32> %a, <2 x i32> %b) #0 { ret <2 x i32> %tmp2 } +define i64 @bs_and64_multiuse1(i64 %a, i64 %b) #0 { +; CHECK-LABEL: @bs_and64_multiuse1( +; CHECK-NEXT: [[TMP1:%.*]] = tail call i64 @llvm.bswap.i64(i64 [[A:%.*]]) +; CHECK-NEXT: [[TMP2:%.*]] = tail call i64 @llvm.bswap.i64(i64 [[B:%.*]]) +; CHECK-NEXT: [[TMP3:%.*]] = and i64 [[A]], [[B]] +; CHECK-NEXT: [[TMP6:%.*]] = call i64 @llvm.bswap.i64(i64 [[TMP3]]) +; CHECK-NEXT: [[TMP4:%.*]] = mul i64 [[TMP6]], [[TMP1]] +; CHECK-NEXT: [[TMP5:%.*]] = mul i64 [[TMP4]], [[TMP2]] +; CHECK-NEXT: ret i64 [[TMP5]] +; + %tmp1 = tail call i64 @llvm.bswap.i64(i64 %a) + %tmp2 = tail call i64 @llvm.bswap.i64(i64 %b) + %tmp3 = and i64 %tmp1, %tmp2 + %tmp4 = mul i64 %tmp3, %tmp1 ; to increase use count of the bswaps + %tmp5 = mul i64 %tmp4, %tmp2 ; to increase use count of the bswaps + ret i64 %tmp5 +} + +define i64 @bs_and64_multiuse2(i64 %a, i64 %b) #0 { +; CHECK-LABEL: @bs_and64_multiuse2( +; CHECK-NEXT: [[TMP1:%.*]] = tail call i64 @llvm.bswap.i64(i64 [[A:%.*]]) +; CHECK-NEXT: [[TMP2:%.*]] = and i64 [[A]], [[B:%.*]] +; CHECK-NEXT: [[TMP3:%.*]] = call i64 @llvm.bswap.i64(i64 [[TMP2]]) +; CHECK-NEXT: [[TMP4:%.*]] = mul i64 [[TMP3]], [[TMP1]] +; CHECK-NEXT: ret i64 [[TMP4]] +; + %tmp1 = tail call i64 @llvm.bswap.i64(i64 %a) + %tmp2 = tail call i64 @llvm.bswap.i64(i64 %b) + %tmp3 = and i64 %tmp1, %tmp2 + %tmp4 = mul i64 %tmp3, %tmp1 ; to increase use count of the bswaps + ret i64 %tmp4 +} + +define i64 @bs_and64_multiuse3(i64 %a, i64 %b) #0 { +; CHECK-LABEL: @bs_and64_multiuse3( +; CHECK-NEXT: [[TMP2:%.*]] = tail call i64 @llvm.bswap.i64(i64 [[B:%.*]]) +; CHECK-NEXT: [[TMP1:%.*]] = and i64 [[A:%.*]], [[B]] +; CHECK-NEXT: [[TMP3:%.*]] = call i64 @llvm.bswap.i64(i64 [[TMP1]]) +; CHECK-NEXT: [[TMP4:%.*]] = mul i64 [[TMP3]], [[TMP2]] +; CHECK-NEXT: ret i64 [[TMP4]] +; + %tmp1 = tail call i64 @llvm.bswap.i64(i64 %a) + %tmp2 = tail call i64 @llvm.bswap.i64(i64 %b) + %tmp3 = and i64 %tmp1, %tmp2 + %tmp4 = mul i64 %tmp3, %tmp2 ; to increase use count of the bswaps + ret i64 %tmp4 +} + +define i64 @bs_and64i_multiuse(i64 %a, i64 %b) #0 { +; CHECK-LABEL: @bs_and64i_multiuse( +; CHECK-NEXT: [[TMP1:%.*]] = tail call i64 @llvm.bswap.i64(i64 [[A:%.*]]) +; CHECK-NEXT: [[TMP2:%.*]] = and i64 [[A]], 129085117527228416 +; CHECK-NEXT: [[TMP4:%.*]] = call i64 @llvm.bswap.i64(i64 [[TMP2]]) +; CHECK-NEXT: [[TMP3:%.*]] = mul i64 [[TMP4]], [[TMP1]] +; CHECK-NEXT: ret i64 [[TMP3]] +; + %tmp1 = tail call i64 @llvm.bswap.i64(i64 %a) + %tmp2 = and i64 %tmp1, 1000000001 + %tmp3 = mul i64 %tmp2, %tmp1 ; to increase use count of the bswap + ret i64 %tmp3 +} + declare i16 @llvm.bswap.i16(i16) declare i32 @llvm.bswap.i32(i32) declare i64 @llvm.bswap.i64(i64) |
