2 ; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=avx512f -debug-only=isel < %s -o /dev/null 2>&1 | FileCheck %s
4 ; This tests the propagation of fast-math-flags from IR instructions to SDNodeFlags.
6 ; CHECK-LABEL: Initial selection DAG: %bb.0 'fmf_transfer:'
8 ; CHECK: t5: f32 = fadd nsz t2, t4
9 ; CHECK-NEXT: t6: f32 = fadd arcp t5, t4
10 ; CHECK-NEXT: t7: f32 = fadd nnan t6, t4
11 ; CHECK-NEXT: t8: f32 = fadd ninf t7, t4
12 ; CHECK-NEXT: t9: f32 = fadd contract t8, t4
13 ; CHECK-NEXT: t10: f32 = fadd afn t9, t4
14 ; CHECK-NEXT: t11: f32 = fadd reassoc t10, t4
15 ; CHECK-NEXT: t12: f32 = fadd nnan ninf nsz arcp contract afn reassoc t11, t4
17 ; CHECK: Optimized lowered selection DAG: %bb.0 'fmf_transfer:'
19 define float @fmf_transfer(float %x, float %y) {
20 %f1 = fadd nsz float %x, %y
21 %f2 = fadd arcp float %f1, %y
22 %f3 = fadd nnan float %f2, %y
23 %f4 = fadd ninf float %f3, %y
24 %f5 = fadd contract float %f4, %y
25 %f6 = fadd afn float %f5, %y
26 %f7 = fadd reassoc float %f6, %y
27 %f8 = fadd fast float %f7, %y
31 ; CHECK-LABEL: Optimized type-legalized selection DAG: %bb.0 'fmf_setcc:'
32 ; CHECK: t13: i8 = setcc nnan ninf nsz arcp contract afn reassoc t2, ConstantFP:f32<0.000000e+00>, setlt:ch
34 define float @fmf_setcc(float %x, float %y) {
35 %cmp = fcmp fast ult float %x, 0.0
36 %ret = select i1 %cmp, float %x, float %y
40 ; CHECK-LABEL: Initial selection DAG: %bb.0 'fmf_setcc_canon:'
41 ; CHECK: t14: i8 = setcc nnan ninf nsz arcp contract afn reassoc t2, ConstantFP:f32<0.000000e+00>, setgt:ch
42 define float @fmf_setcc_canon(float %x, float %y) {
43 %cmp = fcmp fast ult float 0.0, %x
44 %ret = select i1 %cmp, float %x, float %y
48 declare <16 x float> @llvm.x86.avx512.vfmadd.ps.512(<16 x float>, <16 x float>, <16 x float>, i32)
50 ; Check that FMF are propagated twice: from IR to x86-specific node and from x86-specific node to generic node.
52 ; CHECK-LABEL: Initial selection DAG: %bb.0 'fmf_target_intrinsic:'
53 ; CHECK: v16f32 = llvm.x86.avx512.vfmadd.ps.512 ninf nsz TargetConstant:i64<{{.*}}>
54 ; CHECK: v16f32 = llvm.x86.avx512.vfmadd.ps.512 nsz TargetConstant:i64<{{.*}}>
56 ; CHECK-LABEL: Legalized selection DAG: %bb.0 'fmf_target_intrinsic:'
57 ; CHECK: v16f32 = fma ninf nsz t{{.*}}
58 ; CHECK: v16f32 = fma nsz t{{.*}}
60 define <16 x float> @fmf_target_intrinsic(<16 x float> %a, <16 x float> %b, <16 x float> %c) nounwind {
61 %t0 = tail call ninf nsz <16 x float> @llvm.x86.avx512.vfmadd.ps.512(<16 x float> %a, <16 x float> %b, <16 x float> %c, i32 4)
62 %t1 = tail call nsz <16 x float> @llvm.x86.avx512.vfmadd.ps.512(<16 x float> %t0, <16 x float> %b, <16 x float> %c, i32 4)