forked from OSchip/llvm-project
34 lines
1.0 KiB
LLVM
34 lines
1.0 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -S -instcombine | FileCheck %s
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define i32 @__isnan(float %x) alwaysinline nounwind optsize {
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; CHECK-LABEL: @__isnan(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[DOTCAST:%.*]] = bitcast float [[X:%.*]] to i32
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; CHECK-NEXT: [[SHL:%.*]] = shl i32 [[DOTCAST]], 1
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; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[SHL]], -16777216
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; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32
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; CHECK-NEXT: ret i32 [[CONV]]
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;
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entry:
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%x.addr = alloca float, align 4
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store float %x, float* %x.addr, align 4
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%0 = load float, float* %x.addr, align 4
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%1 = bitcast float %0 to i32
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%shl = shl i32 %1, 1
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%cmp = icmp ugt i32 %shl, -16777216
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%conv = zext i1 %cmp to i32
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ret i32 %conv
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}
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define i1 @icmp_shl7(i32 %x) {
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; CHECK-LABEL: @icmp_shl7(
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; CHECK-NEXT: [[SHL:%.*]] = shl i32 [[X:%.*]], 7
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; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[SHL]], 4608
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%shl = shl i32 %x, 7
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%cmp = icmp slt i32 %shl, 4608
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ret i1 %cmp
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}
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