forked from OSchip/llvm-project
16 lines
590 B
LLVM
16 lines
590 B
LLVM
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 -no-integrated-as
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;
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; Check that TwoAddressInstructionPass does not crash after sinking (and
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; revisiting) an instruction that was lowered by TII->convertToThreeAddress()
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; which contains a %noreg operand.
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define i32 @f23(i32 %old) {
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%and1 = and i32 %old, 14
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%and2 = and i32 %old, 254
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%res1 = call i32 asm "stepa $1, $2, $3", "=h,r,r,0"(i32 %old, i32 %and1, i32 %and2)
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%and3 = and i32 %res1, 127
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%and4 = and i32 %res1, 128
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%res2 = call i32 asm "stepb $1, $2, $3", "=r,h,h,0"(i32 %res1, i32 %and3, i32 %and4)
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ret i32 %res2
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}
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