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llvm-mirror/test/CodeGen/X86/fp-stack-O0.ll
Eli Friedman 448be745f6 Fix APFloat::convert so that it handles narrowing conversions correctly; it
was returning incorrect values in rare cases, and incorrectly marking
exact conversions as inexact in some more common cases. Fixes PR11406, and a
missed optimization in test/CodeGen/X86/fp-stack-O0.ll.

llvm-svn: 145141
2011-11-26 03:38:02 +00:00

25 lines
672 B
LLVM

; RUN: llc < %s -O0 | FileCheck %s
target triple = "x86_64-apple-macosx"
declare x86_fp80 @x1(i32) nounwind
declare i32 @x2(x86_fp80, x86_fp80) nounwind
; Keep track of the return value.
; CHECK: test1
; CHECK: x1
; Pass arguments on the stack.
; CHECK-NEXT: movq %rsp, [[RCX:%r..]]
; Copy constant-pool value.
; CHECK-NEXT: fldl LCPI
; CHECK-NEXT: fstpt 16([[RCX]])
; Copy x1 return value.
; CHECK-NEXT: fstpt ([[RCX]])
; CHECK-NEXT: x2
define i32 @test1() nounwind uwtable ssp {
entry:
%call = call x86_fp80 (...)* bitcast (x86_fp80 (i32)* @x1 to x86_fp80 (...)*)(i32 -1)
%call1 = call i32 @x2(x86_fp80 %call, x86_fp80 0xK401EFFFFFFFF00000000)
ret i32 %call1
}