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llvm-mirror/test/CodeGen/PowerPC/xvcmpeqdp-v2f64.ll
Zi Xuan Wu 699d18eb82 [PowerPC] Fix assert from machine verify pass that missing undef register flag
Fix assert about using an undefined physical register in machine instruction verify pass. 
The reason is that register flag undef is missing when doing transformation from If Conversion Pass.

```
Bad machine code: Using an undefined physical register 
- function:    func_65
- basic block: %bb.0 entry (0x10024740738)
- instruction: BCLR killed $cr5lt, implicit $lr8, implicit $rm, implicit undef $x3
- operand 0:   killed $cr5lt
LLVM ERROR: Found 1 machine code errors.
```

There are also other existing testcases with same issue. So I add -verify-machineinstrs option to open verifying.

Differential Revision: https://reviews.llvm.org/D55408

llvm-svn: 348566
2018-12-07 05:25:16 +00:00

41 lines
1.7 KiB
LLVM

; RUN: llc < %s -verify-machineinstrs | FileCheck %s
target datalayout = "e-m:e-i64:64-n32:64"
target triple = "powerpc64le-unknown-linux-gnu"
; Function Attrs: nounwind
define void @__fmax_double3_3D_exec(<3 x double> %input1, <3 x i64> %input2,
<3 x i1> %input3, <3 x i64> %input4,
<3 x i64> %input5, <4 x double>* %input6) #0 {
entry:
br i1 undef, label %if.then.i, label %fmax_double3.exit
if.then.i: ; preds = %entry
%cmp24.i.i = fcmp ord <3 x double> %input1, zeroinitializer
%sext25.i.i = sext <3 x i1> %cmp24.i.i to <3 x i64>
%neg.i.i = xor <3 x i64> %sext25.i.i, <i64 -1, i64 -1, i64 -1>
%or.i.i = or <3 x i64> %input2, %neg.i.i
%neg.i.i.i = select <3 x i1> %input3, <3 x i64> zeroinitializer, <3 x i64> %sext25.i.i
%and.i.i.i = and <3 x i64> %input4, %neg.i.i.i
%and26.i.i.i = and <3 x i64> %input5, %or.i.i
%or.i.i.i = or <3 x i64> %and.i.i.i, %and26.i.i.i
%astype32.i.i.i = bitcast <3 x i64> %or.i.i.i to <3 x double>
%extractVec33.i.i.i = shufflevector <3 x double> %astype32.i.i.i, <3 x double> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 undef>
store <4 x double> %extractVec33.i.i.i, <4 x double>* %input6, align 32
br label %fmax_double3.exit
; CHECK-LABEL: @__fmax_double3_3D_exec
; CHECK: xvcmpeqdp
fmax_double3.exit: ; preds = %if.then.i, %entry
br i1 undef, label %if.then, label %do.end
if.then: ; preds = %fmax_double3.exit
unreachable
do.end: ; preds = %fmax_double3.exit
ret void
}
attributes #0 = { nounwind }