forked from OSchip/llvm-project
66 lines
1.8 KiB
LLVM
66 lines
1.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes='default<O2>' -S < %s | FileCheck %s
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define i64 @PR36760(i64 %a) {
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; CHECK-LABEL: @PR36760(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = tail call i64 @llvm.smax.i64(i64 [[A:%.*]], i64 0)
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; CHECK-NEXT: ret i64 [[TMP0]]
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;
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entry:
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%retval = alloca i64, align 8
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%a.addr = alloca i64, align 8
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store i64 %a, ptr %a.addr, align 8
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%0 = load i64, ptr %a.addr, align 8
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%cmp = icmp slt i64 %0, 0
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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store i64 0, ptr %retval, align 8
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br label %return
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if.end:
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%1 = load i64, ptr %a.addr, align 8
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%shr = ashr i64 %1, 63
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%2 = load i64, ptr %a.addr, align 8
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%xor = xor i64 %shr, %2
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store i64 %xor, ptr %retval, align 8
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br label %return
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return:
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%3 = load i64, ptr %retval, align 8
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ret i64 %3
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}
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define i64 @PR36760_2(i64 %a) #0 {
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; CHECK-LABEL: @PR36760_2(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = tail call i64 @llvm.smin.i64(i64 [[A:%.*]], i64 -1)
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; CHECK-NEXT: [[TMP1:%.*]] = xor i64 [[TMP0]], -1
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; CHECK-NEXT: ret i64 [[TMP1]]
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;
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entry:
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%retval = alloca i64, align 8
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%a.addr = alloca i64, align 8
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store i64 %a, ptr %a.addr, align 8
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%0 = load i64, ptr %a.addr, align 8
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%cmp = icmp sge i64 %0, 0
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br i1 %cmp, label %if.then, label %if.end
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if.then: ; preds = %entry
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store i64 0, ptr %retval, align 8
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br label %return
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if.end: ; preds = %entry
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%1 = load i64, ptr %a.addr, align 8
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%shr = ashr i64 %1, 63
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%2 = load i64, ptr %a.addr, align 8
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%xor = xor i64 %shr, %2
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store i64 %xor, ptr %retval, align 8
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br label %return
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return: ; preds = %if.end, %if.then
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%3 = load i64, ptr %retval, align 8
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ret i64 %3
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}
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