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448be745f6
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
25 lines
672 B
LLVM
25 lines
672 B
LLVM
; RUN: llc < %s -O0 | FileCheck %s
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target triple = "x86_64-apple-macosx"
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declare x86_fp80 @x1(i32) nounwind
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declare i32 @x2(x86_fp80, x86_fp80) nounwind
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; Keep track of the return value.
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; CHECK: test1
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; CHECK: x1
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; Pass arguments on the stack.
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; CHECK-NEXT: movq %rsp, [[RCX:%r..]]
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; Copy constant-pool value.
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; CHECK-NEXT: fldl LCPI
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; CHECK-NEXT: fstpt 16([[RCX]])
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; Copy x1 return value.
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; CHECK-NEXT: fstpt ([[RCX]])
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; CHECK-NEXT: x2
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define i32 @test1() nounwind uwtable ssp {
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entry:
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%call = call x86_fp80 (...)* bitcast (x86_fp80 (i32)* @x1 to x86_fp80 (...)*)(i32 -1)
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%call1 = call i32 @x2(x86_fp80 %call, x86_fp80 0xK401EFFFFFFFF00000000)
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ret i32 %call1
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}
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