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699d18eb82
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
24 lines
655 B
LLVM
24 lines
655 B
LLVM
; RUN: llc -mcpu=pwr7 < %s -verify-machineinstrs | FileCheck %s
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target datalayout = "E-m:e-i64:64-n32:64"
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target triple = "powerpc64-unknown-linux-gnu"
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; Function Attrs: nounwind
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define void @Compute_Lateral() #0 {
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entry:
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br i1 undef, label %if.then, label %if.end
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if.then: ; preds = %entry
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unreachable
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if.end: ; preds = %entry
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%0 = select i1 undef, <2 x double> undef, <2 x double> zeroinitializer
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%1 = extractelement <2 x double> %0, i32 1
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store double %1, double* undef, align 8
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ret void
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; CHECK-LABEL: @Compute_Lateral
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}
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attributes #0 = { nounwind }
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