26ebe16d78
Need to check that unsigned argument can be safely used in smax/smin intrinsics by checking if at least single sign bit is cleared, otherwise its value may be treated as negative instead of positive.
36 lines
1.7 KiB
LLVM
36 lines
1.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
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; RUN: opt -S --passes=slp-vectorizer -mtriple=riscv64-unknown-linux-gnu -mattr=+v < %s | FileCheck %s
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target datalayout = "e-m:e-p:64:64-i64:64-i128:128-n32:64-S128"
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target triple = "riscv64-unknown-linux-gnu"
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@e = global [2 x i8] zeroinitializer
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define void @main(ptr noalias %p) {
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; CHECK-LABEL: define void @main(
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; CHECK-SAME: ptr noalias [[P:%.*]]) #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: bb:
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; CHECK-NEXT: [[CONV_4:%.*]] = zext i32 0 to i64
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; CHECK-NEXT: [[COND_4:%.*]] = tail call i64 @llvm.smax.i64(i64 [[CONV_4]], i64 0)
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; CHECK-NEXT: [[CONV5_4:%.*]] = trunc i64 [[COND_4]] to i8
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; CHECK-NEXT: store i8 [[CONV5_4]], ptr getelementptr inbounds ([11 x i8], ptr @e, i64 0, i64 4), align 1
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; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[P]], align 4
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; CHECK-NEXT: [[CONV_5:%.*]] = zext i32 [[TMP0]] to i64
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; CHECK-NEXT: [[COND_5:%.*]] = tail call i64 @llvm.smax.i64(i64 [[CONV_5]], i64 1)
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; CHECK-NEXT: [[CONV5_5:%.*]] = trunc i64 [[COND_5]] to i8
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; CHECK-NEXT: store i8 [[CONV5_5]], ptr getelementptr inbounds ([11 x i8], ptr @e, i64 0, i64 5), align 1
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; CHECK-NEXT: ret void
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;
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bb:
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%conv.4 = zext i32 0 to i64
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%cond.4 = tail call i64 @llvm.smax.i64(i64 %conv.4, i64 0)
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%conv5.4 = trunc i64 %cond.4 to i8
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store i8 %conv5.4, ptr getelementptr inbounds ([11 x i8], ptr @e, i64 0, i64 4), align 1
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%0 = load i32, ptr %p, align 4
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%conv.5 = zext i32 %0 to i64
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%cond.5 = tail call i64 @llvm.smax.i64(i64 %conv.5, i64 1)
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%conv5.5 = trunc i64 %cond.5 to i8
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store i8 %conv5.5, ptr getelementptr inbounds ([11 x i8], ptr @e, i64 0, i64 5), align 1
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ret void
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}
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