| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -passes=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: [[FACTOR1:%.*]] = fmul fast float -1.000000e+00, bitcast (i32 ptrtoint (ptr @g to i32) to float) |
| ; CHECK-NEXT: [[REASS_ADD:%.*]] = fadd fast float [[FACTOR1]], bitcast (i32 ptrtoint (ptr @g to i32) to float) |
| ; CHECK-NEXT: [[REASS_MUL:%.*]] = fmul fast float [[REASS_ADD]], 2.000000e+00 |
| ; CHECK-NEXT: ret float [[REASS_MUL]] |
| ; |
| %t0 = fadd fast float bitcast (i32 ptrtoint (ptr @g to i32) to float), bitcast (i32 ptrtoint (ptr @g to i32) to float) |
| %t1 = fsub fast float bitcast (i32 ptrtoint (ptr @g to i32) to float), %t0 |
| %t2 = fadd fast float bitcast (i32 ptrtoint (ptr @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 (ptr @g to i32) to float), bitcast (i32 ptrtoint (ptr @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 |
| } |
| |