mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2025-02-01 05:01:59 +01:00
9d042ff7dc
Certain optimisations from ConstantHoisting and CGP rely on Selection DAG not seeing through to the constant in other blocks. Revert this patch while we come up with a better way to handle that. I will try to follow this up with some better tests. llvm-svn: 358113
42 lines
1.7 KiB
LLVM
42 lines
1.7 KiB
LLVM
; RUN: llc -mtriple=s390x-linux-gnu -mcpu=z13 -disable-early-taildup -disable-cgp -systemz-subreg-liveness < %s | FileCheck %s
|
|
|
|
; Check for successful compilation.
|
|
; CHECK: lhi %r0, -5
|
|
|
|
target datalayout = "E-m:e-i1:8:16-i8:8:16-i64:64-f128:64-v128:64-a:8:16-n32:64"
|
|
target triple = "s390x-ibm-linux"
|
|
|
|
; Function Attrs: nounwind
|
|
define void @main() #0 {
|
|
bb:
|
|
%tmp = xor i8 0, -5
|
|
%tmp1 = sext i8 %tmp to i32
|
|
%tmp2 = icmp sgt i8 0, -1
|
|
br label %bb3
|
|
|
|
bb3: ; preds = %bb15, %bb
|
|
%tmp4 = phi i64 [ %tmp16, %bb15 ], [ -1, %bb ]
|
|
br i1 undef, label %bb14, label %bb5
|
|
|
|
bb5: ; preds = %bb3
|
|
%tmp6 = or i1 %tmp2, false
|
|
%tmp7 = select i1 %tmp6, i32 0, i32 100
|
|
%tmp8 = ashr i32 %tmp1, %tmp7
|
|
%tmp9 = zext i32 %tmp8 to i64
|
|
%tmp10 = shl i64 %tmp9, 48
|
|
%tmp11 = ashr exact i64 %tmp10, 48
|
|
%tmp12 = and i64 %tmp11, %tmp4
|
|
%tmp13 = trunc i64 %tmp12 to i32
|
|
store i32 %tmp13, i32* undef, align 4
|
|
br label %bb15
|
|
|
|
bb14: ; preds = %bb3
|
|
br label %bb15
|
|
|
|
bb15: ; preds = %bb14, %bb5
|
|
%tmp16 = phi i64 [ %tmp4, %bb14 ], [ %tmp12, %bb5 ]
|
|
br label %bb3
|
|
}
|
|
|
|
attributes #0 = { nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="z13" "target-features"="+transactional-execution,+vector" "unsafe-fp-math"="false" "use-soft-float"="false" }
|