test/CodeGen/X86/invalid-gcc-snan-conversion.ll - Issue 939073008: Rebased PNaCl localmods in LLVM to 223109

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Issue 939073008: Rebased PNaCl localmods in LLVM to 223109 (Closed)

Patch Set: undo localmod Created 5 years, 9 months ago

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	1 ; If LLVM is built in Release mode with a buggy gcc under x86-32, it

	2 ; may transform 64-bit constants with a signaling NaN bit pattern into

	3 ; a quiet NaN bit pattern. See

	4 ; http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58416

	5

	6 ; RUN: llc -march=x86-64 < %s \| FileCheck %s

	7

	8 define i32 @main() #0 {

	9 entry:

	10 %retval = alloca i32, align 4

	11 %tmp = alloca i64, align 8

	12 store i32 0, i32* %retval

	13 ; -4503599627370495 == 0xfff0000000000001

	14 store i64 -4503599627370495, i64* %tmp, align 8

	15 %0 = load i64* %tmp, align 8

	16 call void @Consume(i64 %0)

	17 ret i32 0

	18 }

	19

	20 ; CHECK: main:

	21 ; make sure 0xfff0000000000001 didn't change to 0xfff8000000000001

	22 ; CHECK: 0xFFF00000

	23 ; CHECK-NOT: 0xFFF80000

	24

	25 declare void @Consume(i64) #1

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