source: icGREP/icgrep-devel/llvm-3.8.0.src/test/CodeGen/ARM/fastisel-gep-promote-before-add.ll @ 5027

Last change on this file since 5027 was 5027, checked in by cameron, 3 years ago

Upgrade to llvm 3.8

File size: 532 bytes
Line 
1; fastisel should not fold add with non-pointer bitwidth
2; sext(a) + sext(b) != sext(a + b)
3; RUN: llc -mtriple=armv7-apple-ios %s -O0 -o - | FileCheck %s
4
5define zeroext i8 @gep_promotion(i8* %ptr) nounwind uwtable ssp {
6entry:
7  %ptr.addr = alloca i8*, align 8
8  %add = add i8 64, 64 ; 0x40 + 0x40
9  %0 = load i8*, i8** %ptr.addr, align 8
10
11  ; CHECK-LABEL: _gep_promotion:
12  ; CHECK: ldrb {{r[0-9]+}}, {{\[r[0-9]+\]}}
13  %arrayidx = getelementptr inbounds i8, i8* %0, i8 %add
14
15  %1 = load i8, i8* %arrayidx, align 1
16  ret i8 %1
17}
18
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