mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 11:13:28 +01:00
a62270de2c
The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
33 lines
699 B
LLVM
33 lines
699 B
LLVM
; RUN: opt < %s -sccp -S | FileCheck %s
|
|
|
|
; Test that SCCP has basic knowledge of when div can nuke overdefined values.
|
|
|
|
; 0 / X = 0 even if X is overdefined.
|
|
; CHECK-LABEL: test1
|
|
; CHECK-NEXT: ret i32 0
|
|
define i32 @test1(i32 %foo) {
|
|
%tinkywinky = udiv i32 0, %foo
|
|
ret i32 %tinkywinky
|
|
}
|
|
|
|
; CHECK-LABEL: test2
|
|
; CHECK-NEXT: ret i32 0
|
|
define i32 @test2(i32 %foo) {
|
|
%tinkywinky = sdiv i32 0, %foo
|
|
ret i32 %tinkywinky
|
|
}
|
|
|
|
; CHECK-LABEL: test3
|
|
; CHECK: ret i32 %tinkywinky
|
|
define i32 @test3(i32 %foo) {
|
|
%tinkywinky = udiv i32 %foo, 0
|
|
ret i32 %tinkywinky
|
|
}
|
|
|
|
; CHECK-LABEL: test4
|
|
; CHECK: ret i32 %tinkywinky
|
|
define i32 @test4(i32 %foo) {
|
|
%tinkywinky = sdiv i32 %foo, 0
|
|
ret i32 %tinkywinky
|
|
}
|