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llvm-mirror/test/Transforms/Reassociate/crash2.ll
Cameron McInally 6101aab3fa Add FNeg IR constant folding support
llvm-svn: 359982
2019-05-05 16:07:09 +00:00

29 lines
1.1 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -reassociate %s -S -o - | FileCheck %s
; Reassociate pass used to crash on these example
@g = global i32 0
define float @undef1() {
; CHECK-LABEL: @undef1(
; CHECK-NEXT: ret float fadd (float bitcast (i32 ptrtoint (i32* @g to i32) to float), float fadd (float bitcast (i32 ptrtoint (i32* @g to i32) to float), float fadd (float fneg (float bitcast (i32 ptrtoint (i32* @g to i32) to float)), float fneg (float bitcast (i32 ptrtoint (i32* @g to i32) to float)))))
;
%t0 = fadd fast float bitcast (i32 ptrtoint (i32* @g to i32) to float), bitcast (i32 ptrtoint (i32* @g to i32) to float)
%t1 = fsub fast float bitcast (i32 ptrtoint (i32* @g to i32) to float), %t0
%t2 = fadd fast float bitcast (i32 ptrtoint (i32* @g to i32) to float), %t1
ret float %t2
}
define void @undef2() {
; CHECK-LABEL: @undef2(
; CHECK-NEXT: unreachable
;
%t0 = fadd fast float bitcast (i32 ptrtoint (i32* @g to i32) to float), bitcast (i32 ptrtoint (i32* @g to i32) to float)
%t1 = fadd fast float %t0, 1.0
%t2 = fsub fast float %t0, %t1
%t3 = fmul fast float %t2, 2.0
unreachable
}