; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mtriple=aarch64-unknown-unknown | FileCheck %s ; Test against PR36600: https://bugs.llvm.org/show_bug.cgi?id=36600 ; This is not fabs. If X = -0.0, it should return -0.0 not 0.0. define double @not_fabs(double %x) #0 { ; CHECK-LABEL: not_fabs: ; CHECK: // %bb.0: ; CHECK-NEXT: fneg d1, d0 ; CHECK-NEXT: fcmp d0, #0.0 ; CHECK-NEXT: fcsel d0, d1, d0, le ; CHECK-NEXT: ret %cmp = fcmp nnan ole double %x, 0.0 %sub = fsub nnan double -0.0, %x %cond = select i1 %cmp, double %sub, double %x ret double %cond } ; Try again with different type, predicate, and compare constant. define float @still_not_fabs(float %x) #0 { ; CHECK-LABEL: still_not_fabs: ; CHECK: // %bb.0: ; CHECK-NEXT: adrp x8, .LCPI1_0 ; CHECK-NEXT: ldr s1, [x8, :lo12:.LCPI1_0] ; CHECK-NEXT: fneg s2, s0 ; CHECK-NEXT: fcmp s0, s1 ; CHECK-NEXT: fcsel s0, s0, s2, ge ; CHECK-NEXT: ret %cmp = fcmp nnan oge float %x, -0.0 %sub = fsub nnan float -0.0, %x %cond = select i1 %cmp, float %x, float %sub ret float %cond } attributes #0 = { "no-nans-fp-math"="true" }