1 ; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs< %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s 2 ; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs< %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s 3 4 ; Test that we correctly commute a sub instruction 5 ; FUNC-LABEL: {{^}}sub_rev: 6 ; SI-NOT: v_sub_i32_e32 v{{[0-9]+}}, vcc, s 7 ; SI: v_subrev_i32_e32 v{{[0-9]+}}, vcc, s 8 9 ; ModuleID = 'vop-shrink.ll' 10 11 define void @sub_rev(i32 addrspace(1)* %out, <4 x i32> %sgpr, i32 %cond) { 12 entry: 13 %vgpr = call i32 @llvm.r600.read.tidig.x() #1 14 %tmp = icmp eq i32 %cond, 0 15 br i1 %tmp, label %if, label %else 16 17 if: ; preds = %entry 18 %tmp1 = getelementptr i32, i32 addrspace(1)* %out, i32 1 19 %tmp2 = extractelement <4 x i32> %sgpr, i32 1 20 store i32 %tmp2, i32 addrspace(1)* %out 21 br label %endif 22 23 else: ; preds = %entry 24 %tmp3 = extractelement <4 x i32> %sgpr, i32 2 25 %tmp4 = sub i32 %vgpr, %tmp3 26 store i32 %tmp4, i32 addrspace(1)* %out 27 br label %endif 28 29 endif: ; preds = %else, %if 30 ret void 31 } 32 33 ; Test that we fold an immediate that was illegal for a 64-bit op into the 34 ; 32-bit op when we shrink it. 35 36 ; FUNC-LABEL: {{^}}add_fold: 37 ; SI: v_add_f32_e32 v{{[0-9]+}}, 0x44800000 38 define void @add_fold(float addrspace(1)* %out) { 39 entry: 40 %tmp = call i32 @llvm.r600.read.tidig.x() 41 %tmp1 = uitofp i32 %tmp to float 42 %tmp2 = fadd float %tmp1, 1.024000e+03 43 store float %tmp2, float addrspace(1)* %out 44 ret void 45 } 46 47 ; Function Attrs: nounwind readnone 48 declare i32 @llvm.r600.read.tidig.x() #0 49 50 attributes #0 = { nounwind readnone } 51 attributes #1 = { readnone } 52
