Files
clang-p2996/llvm/test/Transforms/EarlyCSE/readnone-mayunwind.ll
Sanjoy Das 6de072a712 [EarlyCSE] Don't DSE across readnone functions that may throw
Summary: Depends on D28740

Reviewers: dberlin, chandlerc, hfinkel, majnemer

Subscribers: mcrosier, llvm-commits

Differential Revision: https://reviews.llvm.org/D28741

llvm-svn: 292249
2017-01-17 20:15:47 +00:00

16 lines
352 B
LLVM

; RUN: opt -S -early-cse < %s | FileCheck %s
declare void @readnone_may_unwind() readnone
define void @f(i32* %ptr) {
; CHECK-LABEL: @f(
; CHECK: store i32 100, i32* %ptr
; CHECK: call void @readnone_may_unwind()
; CHECK: store i32 200, i32* %ptr
store i32 100, i32* %ptr
call void @readnone_may_unwind()
store i32 200, i32* %ptr
ret void
}