derek.holloway
7502bf64a4
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31 lines
1.1 KiB
LLVM
31 lines
1.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by update_test_checks.py
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; RUN: opt -S -passes=instsimplify < %s | FileCheck %s
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target datalayout = "E-m:e-i64:64-n32:64"
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target triple = "powerpc64-unknown-linux-gnu"
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define zeroext i1 @_Z10isNegativemj(i64 %Val, i32 zeroext %IntegerBitWidth) {
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; CHECK-LABEL: @_Z10isNegativemj(
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; CHECK: [[CONV:%.*]] = zext i32 %IntegerBitWidth to i64
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; CHECK-NEXT: [[SUB:%.*]] = sub i64 128, [[CONV]]
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; CHECK-NEXT: [[CONV1:%.*]] = trunc i64 [[SUB]] to i32
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; CHECK-NEXT: [[CONV2:%.*]] = zext i64 %Val to i128
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; CHECK-NEXT: [[SH_PROM:%.*]] = zext i32 [[CONV1]] to i128
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; CHECK-NEXT: [[SHL:%.*]] = shl i128 [[CONV2]], [[SH_PROM]]
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; CHECK-NEXT: [[SHR:%.*]] = ashr i128 [[SHL]], [[SH_PROM]]
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; CHECK-NEXT: [[CMP:%.*]] = icmp slt i128 [[SHR]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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entry:
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%conv = zext i32 %IntegerBitWidth to i64
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%sub = sub i64 128, %conv
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%conv1 = trunc i64 %sub to i32
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%conv2 = zext i64 %Val to i128
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%sh_prom = zext i32 %conv1 to i128
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%shl = shl i128 %conv2, %sh_prom
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%shr = ashr i128 %shl, %sh_prom
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%cmp = icmp slt i128 %shr, 0
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ret i1 %cmp
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}
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