diff options
| -rw-r--r-- | llvm/test/Transforms/InstCombine/2007-03-25-BadShiftMask.ll | 58 |
1 files changed, 38 insertions, 20 deletions
diff --git a/llvm/test/Transforms/InstCombine/2007-03-25-BadShiftMask.ll b/llvm/test/Transforms/InstCombine/2007-03-25-BadShiftMask.ll index adaaf784ab6..9fe29312793 100644 --- a/llvm/test/Transforms/InstCombine/2007-03-25-BadShiftMask.ll +++ b/llvm/test/Transforms/InstCombine/2007-03-25-BadShiftMask.ll @@ -1,29 +1,47 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; PR1271 -; RUN: opt < %s -instcombine -S | \ -; RUN: grep "icmp eq i32 .tmp.*, 2146435072" +; RUN: opt < %s -instcombine -S | FileCheck %s + %struct..0anon = type { i32, i32 } %struct..1anon = type { double } define i32 @main() { +; CHECK-LABEL: @main( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[U:%.*]] = alloca %struct..1anon, align 8 +; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds %struct..1anon, %struct..1anon* [[U]], i64 0, i32 0 +; CHECK-NEXT: store double 0x7FF0000000000000, double* [[TMP1]], align 8 +; CHECK-NEXT: [[TMP34:%.*]] = bitcast %struct..1anon* [[U]] to %struct..0anon* +; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds %struct..0anon, %struct..0anon* [[TMP34]], i64 0, i32 1 +; CHECK-NEXT: [[TMP6:%.*]] = load i32, i32* [[TMP5]], align 4 +; CHECK-NEXT: [[TMP89:%.*]] = and i32 [[TMP6]], 2146435072 +; CHECK-NEXT: [[TMP0:%.*]] = icmp eq i32 [[TMP89]], 2146435072 +; CHECK-NEXT: br i1 [[TMP0]], label %cond_false, label %cond_true +; CHECK: cond_true: +; CHECK-NEXT: ret i32 0 +; CHECK: cond_false: +; CHECK-NEXT: ret i32 1 +; entry: - %u = alloca %struct..1anon, align 8 ; <%struct..1anon*> [#uses=4] - %tmp1 = getelementptr %struct..1anon, %struct..1anon* %u, i32 0, i32 0 ; <double*> [#uses=1] - store double 0x7FF0000000000000, double* %tmp1 - %tmp3 = getelementptr %struct..1anon, %struct..1anon* %u, i32 0, i32 0 ; <double*> [#uses=1] - %tmp34 = bitcast double* %tmp3 to %struct..0anon* ; <%struct..0anon*> [#uses=1] - %tmp5 = getelementptr %struct..0anon, %struct..0anon* %tmp34, i32 0, i32 1 ; <i32*> [#uses=1] - %tmp6 = load i32, i32* %tmp5 ; <i32> [#uses=1] - %tmp7 = shl i32 %tmp6, 1 ; <i32> [#uses=1] - %tmp8 = lshr i32 %tmp7, 21 ; <i32> [#uses=1] - %tmp89 = trunc i32 %tmp8 to i16 ; <i16> [#uses=1] - icmp ne i16 %tmp89, 2047 ; <i1>:0 [#uses=1] - zext i1 %0 to i8 ; <i8>:1 [#uses=1] - icmp ne i8 %1, 0 ; <i1>:2 [#uses=1] - br i1 %2, label %cond_true, label %cond_false + %u = alloca %struct..1anon, align 8 + %tmp1 = getelementptr %struct..1anon, %struct..1anon* %u, i32 0, i32 0 + store double 0x7FF0000000000000, double* %tmp1 + %tmp3 = getelementptr %struct..1anon, %struct..1anon* %u, i32 0, i32 0 + %tmp34 = bitcast double* %tmp3 to %struct..0anon* + %tmp5 = getelementptr %struct..0anon, %struct..0anon* %tmp34, i32 0, i32 1 + %tmp6 = load i32, i32* %tmp5 + %tmp7 = shl i32 %tmp6, 1 + %tmp8 = lshr i32 %tmp7, 21 + %tmp89 = trunc i32 %tmp8 to i16 + icmp ne i16 %tmp89, 2047 + zext i1 %0 to i8 + icmp ne i8 %1, 0 + br i1 %2, label %cond_true, label %cond_false -cond_true: ; preds = %entry - ret i32 0 +cond_true: + ret i32 0 -cond_false: ; preds = %entry - ret i32 1 +cond_false: + ret i32 1 } + |
