llvm/test/CodeGen/PowerPC/fastisel-gep-promote-before-add.ll
2015-07-24 01:07:50 +00:00

18 lines
524 B
LLVM

; fastisel should not fold add with non-pointer bitwidth
; sext(a) + sext(b) != sext(a + b)
; RUN: llc -mtriple=powerpc64-unknown-freebsd10.0 %s -O0 -o - | FileCheck %s
define zeroext i8 @gep_promotion(i8* %ptr) nounwind {
entry:
%ptr.addr = alloca i8*, align 8
%add = add i8 64, 64 ; 0x40 + 0x40
%0 = load i8*, i8** %ptr.addr, align 8
; CHECK-LABEL: gep_promotion:
; CHECK: lbz {{[0-9]+}}, 0({{.*}})
%arrayidx = getelementptr inbounds i8, i8* %0, i8 %add
%1 = load i8, i8* %arrayidx, align 1
ret i8 %1
}