1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
2 ; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 %s -o - | FileCheck -check-prefix=GCN %s
4 ; The si-mode-register pass is changing the default mode for FP constrained operations.
5 ; It must ignore for strictfp functions.
7 define double @ignoreStrictfp(double noundef %a, double noundef %b) #0 {
8 ; GCN-LABEL: ignoreStrictfp:
10 ; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
11 ; GCN-NEXT: s_setreg_imm32_b32 hwreg(HW_REG_MODE, 2, 2), 1
12 ; GCN-NEXT: v_add_f64 v[0:1], v[0:1], v[2:3]
13 ; GCN-NEXT: s_setpc_b64 s[30:31]
14 tail call void @llvm.amdgcn.s.setreg(i32 2177, i32 1)
15 %val = tail call double @llvm.experimental.constrained.fadd.f64(double %a, double %b, metadata !"round.dynamic", metadata !"fpexcept.strict") #0
19 define double @set_fpenv(double noundef %a, double noundef %b) #0 {
20 ; GCN-LABEL: set_fpenv:
21 ; GCN: ; %bb.0: ; %entry
22 ; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
23 ; GCN-NEXT: s_setreg_imm32_b32 hwreg(HW_REG_MODE, 0, 23), 4
24 ; GCN-NEXT: s_setreg_imm32_b32 hwreg(HW_REG_TRAPSTS, 0, 5), 0
25 ; GCN-NEXT: v_add_f64 v[0:1], v[0:1], v[2:3]
26 ; GCN-NEXT: s_setpc_b64 s[30:31]
28 call void @llvm.set.fpenv.i64(i64 4)
29 %val = tail call double @llvm.experimental.constrained.fadd.f64(double %a, double %b, metadata !"round.dynamic", metadata !"fpexcept.strict") #0
33 declare void @llvm.amdgcn.s.setreg(i32 immarg, i32)
35 declare double @llvm.experimental.constrained.fadd.f64(double, double, metadata, metadata)
37 declare void @llvm.set.fpenv.i64(i64)
39 attributes #0 = { strictfp }