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e6f350d755
e.g. %reg1024<def> = MOV r1 %reg1025<def> = ADD %reg1024, %reg1026 r0 = MOV %reg1025 If it's not possible / profitable to commute ADD, then turning ADD into a LEA saves a copy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68065 91177308-0d34-0410-b5e6-96231b3b80d8
10 lines
433 B
LLVM
10 lines
433 B
LLVM
; RUN: llvm-as < %s | llc -march=x86-64 | not grep movq
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define i64 @t(i64 %a, i64 %b) nounwind ssp {
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entry:
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%asmtmp = tail call i64 asm "rorq $1,$0", "=r,J,0,~{dirflag},~{fpsr},~{flags},~{cc}"(i32 1, i64 %a) nounwind ; <i64> [#uses=1]
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%asmtmp1 = tail call i64 asm "rorq $1,$0", "=r,J,0,~{dirflag},~{fpsr},~{flags},~{cc}"(i32 1, i64 %b) nounwind ; <i64> [#uses=1]
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%0 = add i64 %asmtmp1, %asmtmp ; <i64> [#uses=1]
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ret i64 %0
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}
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