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New EarlyCSE tests for CSE-ing across commutativity. 

llvm-svn: 165510
This commit is contained in:
Michael Ilseman 2012-10-09 16:58:13 +00:00
parent 336cb79fdf
commit c93cffb590
1 changed files with 66 additions and 0 deletions
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66
llvm/test/Transforms/EarlyCSE/commute.ll Normal file
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; RUN: opt < %s -S -early-cse | FileCheck %s
; CHECK: @test1
define void @test1(float %A, float %B, float* %PA, float* %PB) {
; CHECK-NEXT: fadd
; CHECK-NEXT: store
; CHECK-NEXT: store
; CHECK-NEXT: ret
%C = fadd float %A, %B
store float %C, float* %PA
%D = fadd float %B, %A
store float %D, float* %PB
ret void
}
; CHECK: @test2
define void @test2(float %A, float %B, i1* %PA, i1* %PB) {
; CHECK-NEXT: fcmp
; CHECK-NEXT: store
; CHECK-NEXT: store
; CHECK-NEXT: ret
%C = fcmp eq float %A, %B
store i1 %C, i1* %PA
%D = fcmp eq float %B, %A
store i1 %D, i1* %PB
ret void
}
; CHECK: @test3
define void @test3(float %A, float %B, i1* %PA, i1* %PB) {
; CHECK-NEXT: fcmp
; CHECK-NEXT: store
; CHECK-NEXT: store
; CHECK-NEXT: ret
%C = fcmp uge float %A, %B
store i1 %C, i1* %PA
%D = fcmp ule float %B, %A
store i1 %D, i1* %PB
ret void
}
; CHECK: @test4
define void @test4(i32 %A, i32 %B, i1* %PA, i1* %PB) {
; CHECK-NEXT: icmp
; CHECK-NEXT: store
; CHECK-NEXT: store
; CHECK-NEXT: ret
%C = icmp eq i32 %A, %B
store i1 %C, i1* %PA
%D = icmp eq i32 %B, %A
store i1 %D, i1* %PB
ret void
}
; CHECK: @test5
define void @test5(i32 %A, i32 %B, i1* %PA, i1* %PB) {
; CHECK-NEXT: icmp
; CHECK-NEXT: store
; CHECK-NEXT: store
; CHECK-NEXT: ret
%C = icmp sgt i32 %A, %B
store i1 %C, i1* %PA
%D = icmp slt i32 %B, %A
store i1 %D, i1* %PB
ret void
}