forked from OSchip/llvm-project
87 lines
3.1 KiB
LLVM
87 lines
3.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
|
|
; REQUIRES: asserts
|
|
|
|
; Eliminates store to %R in the entry block.
|
|
; RUN: opt < %s -basic-aa -dse -debug-counter=dse-memoryssa-skip=0,dse-memoryssa-count=1 -S | FileCheck --check-prefix=SKIP0-COUNT1 %s
|
|
|
|
; Eliminates store to %P in the entry block.
|
|
; RUN: opt < %s -basic-aa -dse -debug-counter=dse-memoryssa-skip=1,dse-memoryssa-count=1 -S | FileCheck --check-prefix=SKIP1-COUNT1 %s
|
|
|
|
; Eliminates both stores in the entry block.
|
|
; RUN: opt < %s -basic-aa -dse -debug-counter=dse-memoryssa-skip=0,dse-memoryssa-count=2 -S | FileCheck --check-prefix=SKIP0-COUNT2 %s
|
|
|
|
; Eliminates no stores.
|
|
; RUN: opt < %s -basic-aa -dse -debug-counter=dse-memoryssa-skip=2,dse-memoryssa-count=1 -S | FileCheck --check-prefix=SKIP2-COUNT1 %s
|
|
|
|
|
|
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
|
|
|
|
|
|
define void @test(i32* noalias %P, i32* noalias %Q, i32* noalias %R) {
|
|
; SKIP0-COUNT1-LABEL: @test(
|
|
; SKIP0-COUNT1-NEXT: store i32 1, i32* [[P:%.*]]
|
|
; SKIP0-COUNT1-NEXT: br i1 true, label [[BB1:%.*]], label [[BB2:%.*]]
|
|
; SKIP0-COUNT1: bb1:
|
|
; SKIP0-COUNT1-NEXT: br label [[BB3:%.*]]
|
|
; SKIP0-COUNT1: bb2:
|
|
; SKIP0-COUNT1-NEXT: br label [[BB3]]
|
|
; SKIP0-COUNT1: bb3:
|
|
; SKIP0-COUNT1-NEXT: store i32 0, i32* [[Q:%.*]]
|
|
; SKIP0-COUNT1-NEXT: store i32 0, i32* [[R:%.*]]
|
|
; SKIP0-COUNT1-NEXT: store i32 0, i32* [[P]]
|
|
; SKIP0-COUNT1-NEXT: ret void
|
|
;
|
|
; SKIP1-COUNT1-LABEL: @test(
|
|
; SKIP1-COUNT1-NEXT: store i32 1, i32* [[R:%.*]]
|
|
; SKIP1-COUNT1-NEXT: br i1 true, label [[BB1:%.*]], label [[BB2:%.*]]
|
|
; SKIP1-COUNT1: bb1:
|
|
; SKIP1-COUNT1-NEXT: br label [[BB3:%.*]]
|
|
; SKIP1-COUNT1: bb2:
|
|
; SKIP1-COUNT1-NEXT: br label [[BB3]]
|
|
; SKIP1-COUNT1: bb3:
|
|
; SKIP1-COUNT1-NEXT: store i32 0, i32* [[Q:%.*]]
|
|
; SKIP1-COUNT1-NEXT: store i32 0, i32* [[R]]
|
|
; SKIP1-COUNT1-NEXT: store i32 0, i32* [[P:%.*]]
|
|
; SKIP1-COUNT1-NEXT: ret void
|
|
;
|
|
; SKIP0-COUNT2-LABEL: @test(
|
|
; SKIP0-COUNT2-NEXT: br i1 true, label [[BB1:%.*]], label [[BB2:%.*]]
|
|
; SKIP0-COUNT2: bb1:
|
|
; SKIP0-COUNT2-NEXT: br label [[BB3:%.*]]
|
|
; SKIP0-COUNT2: bb2:
|
|
; SKIP0-COUNT2-NEXT: br label [[BB3]]
|
|
; SKIP0-COUNT2: bb3:
|
|
; SKIP0-COUNT2-NEXT: store i32 0, i32* [[Q:%.*]]
|
|
; SKIP0-COUNT2-NEXT: store i32 0, i32* [[R:%.*]]
|
|
; SKIP0-COUNT2-NEXT: store i32 0, i32* [[P:%.*]]
|
|
; SKIP0-COUNT2-NEXT: ret void
|
|
;
|
|
; SKIP2-COUNT1-LABEL: @test(
|
|
; SKIP2-COUNT1-NEXT: store i32 1, i32* [[P:%.*]]
|
|
; SKIP2-COUNT1-NEXT: store i32 1, i32* [[R:%.*]]
|
|
; SKIP2-COUNT1-NEXT: br i1 true, label [[BB1:%.*]], label [[BB2:%.*]]
|
|
; SKIP2-COUNT1: bb1:
|
|
; SKIP2-COUNT1-NEXT: br label [[BB3:%.*]]
|
|
; SKIP2-COUNT1: bb2:
|
|
; SKIP2-COUNT1-NEXT: br label [[BB3]]
|
|
; SKIP2-COUNT1: bb3:
|
|
; SKIP2-COUNT1-NEXT: store i32 0, i32* [[Q:%.*]]
|
|
; SKIP2-COUNT1-NEXT: store i32 0, i32* [[R]]
|
|
; SKIP2-COUNT1-NEXT: store i32 0, i32* [[P]]
|
|
; SKIP2-COUNT1-NEXT: ret void
|
|
;
|
|
store i32 1, i32* %P
|
|
store i32 1, i32* %R
|
|
br i1 true, label %bb1, label %bb2
|
|
bb1:
|
|
br label %bb3
|
|
bb2:
|
|
br label %bb3
|
|
bb3:
|
|
store i32 0, i32* %Q
|
|
store i32 0, i32* %R
|
|
store i32 0, i32* %P
|
|
ret void
|
|
}
|