Nikita Popov 525090e83c
Revert "[MIPS]Fix QNaNs in the MIPS legacy NaN encodings" (#150773)
Reverts llvm/llvm-project#139829.

We can't just randomly change the value of constants during lowering.

Fixes https://github.com/llvm/llvm-project/issues/149295.
2025-07-28 10:36:40 +02:00

26 lines
653 B
LLVM

; RUN: llc -mtriple=mips-linux-gnu -mattr=-nan2008 < %s | FileCheck %s
; RUN: llc -mtriple=mips-linux-gnu -mattr=+nan2008 < %s | FileCheck %s
; Make sure that lowering does not corrupt the value of NaN values,
; regardless of what the NaN mode is.
define float @test1() {
; CHECK: .4byte 0x7fc00000
ret float bitcast (i32 u0x7fc00000 to float)
}
define float @test2() {
; CHECK: .4byte 0x7fc00001
ret float bitcast (i32 u0x7fc00001 to float)
}
define float @test3() {
; CHECK: .4byte 0x7f800000
ret float bitcast (i32 u0x7f800000 to float)
}
define float @test4() {
; CHECK: .4byte 0x7f800001
ret float bitcast (i32 u0x7f800001 to float)
}