1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s 3 4 ; PR31455 - https://bugs.llvm.org/show_bug.cgi?id=31455 5 ; We have to assume that errno can be set, so we have to make a libcall in that case. 6 ; But it's better for perf to check that the argument is valid rather than the result of 7 ; sqrtss/sqrtsd. 8 ; Note: This is really a test of the -partially-inline-libcalls IR pass (and we have an IR test 9 ; for that), but we're checking the final asm to make sure that comes out as expected too. 10 11 define float @f(float %val) nounwind { 12 ; CHECK-LABEL: f: 13 ; CHECK: # %bb.0: 14 ; CHECK-NEXT: xorps %xmm1, %xmm1 15 ; CHECK-NEXT: ucomiss %xmm1, %xmm0 16 ; CHECK-NEXT: jb .LBB0_2 17 ; CHECK-NEXT: # %bb.1: # %.split 18 ; CHECK-NEXT: sqrtss %xmm0, %xmm0 19 ; CHECK-NEXT: retq 20 ; CHECK-NEXT: .LBB0_2: # %call.sqrt 21 ; CHECK-NEXT: jmp sqrtf # TAILCALL 22 %res = tail call float @sqrtf(float %val) 23 ret float %res 24 } 25 26 define double @d(double %val) nounwind { 27 ; CHECK-LABEL: d: 28 ; CHECK: # %bb.0: 29 ; CHECK-NEXT: xorps %xmm1, %xmm1 30 ; CHECK-NEXT: ucomisd %xmm1, %xmm0 31 ; CHECK-NEXT: jb .LBB1_2 32 ; CHECK-NEXT: # %bb.1: # %.split 33 ; CHECK-NEXT: sqrtsd %xmm0, %xmm0 34 ; CHECK-NEXT: retq 35 ; CHECK-NEXT: .LBB1_2: # %call.sqrt 36 ; CHECK-NEXT: jmp sqrt # TAILCALL 37 %res = tail call double @sqrt(double %val) 38 ret double %res 39 } 40 41 declare float @sqrtf(float) 42 declare double @sqrt(double) 43 44
