From 4d2b4077e7087b1b0476d9b3ef5fbcc7b0149990 Mon Sep 17 00:00:00 2001 From: Sanjay Patel Date: Tue, 10 Sep 2019 20:04:10 +0000 Subject: [PATCH] [x86] add test for false dependency with AVX; NFC Goes with D67363 llvm-svn: 371551 --- llvm/test/CodeGen/X86/stack-folding-fp-avx1.ll | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/llvm/test/CodeGen/X86/stack-folding-fp-avx1.ll b/llvm/test/CodeGen/X86/stack-folding-fp-avx1.ll index 2b13350..3b69f2d 100644 --- a/llvm/test/CodeGen/X86/stack-folding-fp-avx1.ll +++ b/llvm/test/CodeGen/X86/stack-folding-fp-avx1.ll @@ -2868,6 +2868,21 @@ define double @stack_fold_roundsd(double %a0) optsize { %2 = call double @llvm.floor.f64(double %a0) ret double %2 } + +define double @stack_fold_roundsd_minsize(double %a0) minsize { +; CHECK-LABEL: stack_fold_roundsd_minsize: +; CHECK: # %bb.0: +; CHECK-NEXT: vmovsd %xmm0, {{[-0-9]+}}(%r{{[sb]}}p) # 8-byte Spill +; CHECK-NEXT: #APP +; CHECK-NEXT: nop +; CHECK-NEXT: #NO_APP +; CHECK-NEXT: vxorps %xmm0, %xmm0, %xmm0 +; CHECK-NEXT: vroundsd $9, {{[-0-9]+}}(%r{{[sb]}}p), %xmm0, %xmm0 # 8-byte Folded Reload +; CHECK-NEXT: retq + %1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm1},~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{flags}"() + %2 = call double @llvm.floor.f64(double %a0) + ret double %2 +} declare double @llvm.floor.f64(double) nounwind readnone define <2 x double> @stack_fold_roundsd_int(<2 x double> %a0, <2 x double> %a1) optsize { -- 2.7.4