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llvm-mirror/test/CodeGen/X86/inline-asm-fpstack5.ll
Rafael Espindola 340632e814 Fix PR4485.
Avoid unnecessary duplication of operand 0 of X86::FpSET_ST0_80. This duplication would
cause one register to remain on the stack at the function return.

llvm-svn: 74534
2009-06-30 16:40:03 +00:00

16 lines
500 B
LLVM

; RUN: llvm-as < %s | llc -march=x86
; PR4485
define void @test(x86_fp80* %a) {
entry:
%0 = load x86_fp80* %a, align 16
%1 = fmul x86_fp80 %0, 0xK4006B400000000000000
%2 = fmul x86_fp80 %1, 0xK4012F424000000000000
tail call void asm sideeffect "fistpl $0", "{st},~{st}"(x86_fp80 %2)
%3 = load x86_fp80* %a, align 16
%4 = fmul x86_fp80 %3, 0xK4006B400000000000000
%5 = fmul x86_fp80 %4, 0xK4012F424000000000000
tail call void asm sideeffect "fistpl $0", "{st},~{st}"(x86_fp80 %5)
ret void
}