AMDGPU: Have a few selection failure tests check both paths

[arsenm]

Summary

SelectionDAG and GlobalISel take different failure paths for these and
end up producing different failure errors. Check both so the test
passes when the default is switched.

[arsenm]

05a3c8848a08fea5b832e69b94d3d647ef29f745

llvm/test/CodeGen/AMDGPU/div_i128.ll

-; RUN: not --crash llc -mtriple=amdgcn-amd-amdhsa -verify-machineinstrs -o - %s 2>&1 | FileCheck %s
+; RUN: not --crash llc -global-isel=0 -mtriple=amdgcn-amd-amdhsa -verify-machineinstrs -o - %s 2>&1 | FileCheck -check-prefix=SDAG-ERR %s
+; RUN: not --crash llc -global-isel=1 -mtriple=amdgcn-amd-amdhsa -verify-machineinstrs -o - %s 2>&1 | FileCheck -check-prefix=GISEL-ERR %s
 
-; CHECK: LLVM ERROR: unsupported libcall legalization
+; SDAG-ERR: LLVM ERROR: unsupported libcall legalization
+; GISEL-ERR: LLVM ERROR: unable to legalize instruction: %{{[0-9]+}}:_(s128) = G_SDIV %{{[0-9]+}}:_, %{{[0-9]+}}:_ (in function: v_sdiv_i128_vv)
 define i128 @v_sdiv_i128_vv(i128 %lhs, i128 %rhs) {
   %shl = sdiv i128 %lhs, %rhs
   ret i128 %shl
 }

llvm/test/CodeGen/AMDGPU/llvm.amdgcn.ds.gws.sema.release.all.ll

-; RUN: not --crash llc -mtriple=amdgcn-mesa-mesa3d -mcpu=tahiti -o - < %s 2>&1 | FileCheck -enable-var-scope -check-prefix=GFX6ERR %s
+; RUN: not --crash llc -global-isel=0 -mtriple=amdgcn-mesa-mesa3d -mcpu=tahiti -o - < %s 2>&1 | FileCheck -enable-var-scope -check-prefix=GFX6ERR-SDAG %s
+; RUN: not --crash llc -global-isel=1 -mtriple=amdgcn-mesa-mesa3d -mcpu=tahiti -o - < %s 2>&1 | FileCheck -enable-var-scope -check-prefix=GFX6ERR-GISEL %s
+
 ; RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=hawaii -o - -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,LOOP %s
 ; RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=fiji -o - -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,LOOP,GFX8 %s
 ; RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=gfx900 -o - -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,NOLOOP %s
 ; RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=gfx1010 -o - -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,NOLOOP,GFX10 %s
 
-; GFX6ERR: LLVM ERROR: Cannot select: intrinsic %llvm.amdgcn.ds.gws.sema.release.all
+; GFX6ERR-SDAG: LLVM ERROR: Cannot select: intrinsic %llvm.amdgcn.ds.gws.sema.release.all
+; GFX6ERR-GISEL: LLVM ERROR: cannot select: G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.ds.gws.sema.release.all), %{{[0-9]+}}:sgpr(s32) :: (store 4 into custom "GWSResource") (in function: gws_sema_release_all_offset0)
 
 ; GCN-LABEL: {{^}}gws_sema_release_all_offset0:
 ; NOLOOP-DAG: s_mov_b32 m0, 0{{$}}
 ; NOLOOP: ds_gws_sema_release_all gds{{$}}
 
 ; LOOP: s_mov_b32 m0, 0{{$}}
 ; LOOP: [[LOOP:BB[0-9]+_[0-9]+]]:
 ; LOOP-NEXT: s_setreg_imm32_b32 hwreg(HW_REG_TRAPSTS, 8, 1), 0

llvm/test/CodeGen/AMDGPU/unsupported-image-a16.ll

-; RUN: not --crash llc -march=amdgcn -mcpu=fiji -verify-machineinstrs -o /dev/null %s 2>&1 | FileCheck -check-prefix=ERR %s
+; RUN: not --crash llc -global-isel=0 -march=amdgcn -mcpu=fiji -verify-machineinstrs -o /dev/null %s 2>&1 | FileCheck -check-prefix=SDAG-ERR %s
+; RUN: not --crash llc -global-isel=1 -march=amdgcn -mcpu=fiji -verify-machineinstrs -o /dev/null %s 2>&1 | FileCheck -check-prefix=GISEL-ERR %s
 
 ; Make sure this doesn't assert on targets without the r128-16
 ; feature, and instead generates a slection error.
 
-; ERR: LLVM ERROR: Cannot select: intrinsic %llvm.amdgcn.image.load.1d
+; SDAG-ERR: LLVM ERROR: Cannot select: intrinsic %llvm.amdgcn.image.load.1d
+; GISEL-ERR: LLVM ERROR: unable to legalize instruction: %{{[0-9]+}}:_(<4 x s32>) = G_AMDGPU_INTRIN_IMAGE_LOAD intrinsic(@llvm.amdgcn.image.load.1d), 15, %{{[0-9]+}}:_(s16), %{{[0-9]+}}:_(<8 x s32>), 0, 0 :: (dereferenceable load 16 from custom "TargetCustom8") (in function: load_1d)
 
 define amdgpu_ps <4 x float> @load_1d(<8 x i32> inreg %rsrc, <2 x i16> %coords) {
 main_body:
   %s = extractelement <2 x i16> %coords, i32 0
   %v = call <4 x float> @llvm.amdgcn.image.load.1d.v4f32.i16(i32 15, i16 %s, <8 x i32> %rsrc, i32 0, i32 0)
   ret <4 x float> %v
 }
 
 declare <4 x float> @llvm.amdgcn.image.load.1d.v4f32.i16(i32 immarg, i16, <8 x i32>, i32 immarg, i32 immarg) #0
 
 attributes #0 = { nounwind readonly }

llvm/test/CodeGen/AMDGPU/unsupported-image-g16.ll

-; RUN: not --crash llc -march=amdgcn -mcpu=fiji -verify-machineinstrs -o /dev/null %s 2>&1 | FileCheck -check-prefix=ERR %s
-; RUN: not --crash llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs -o /dev/null %s 2>&1 | FileCheck -check-prefix=ERR %s
+; RUN: not --crash llc -global-isel=0 -march=amdgcn -mcpu=fiji -verify-machineinstrs -o /dev/null %s 2>&1 | FileCheck -check-prefix=SDAG-ERR %s
+; RUN: not --crash llc -global-isel=0 -march=amdgcn -mcpu=gfx900 -verify-machineinstrs -o /dev/null %s 2>&1 | FileCheck -check-prefix=SDAG-ERR %s
+
+; RUN: not --crash llc -global-isel=1 -march=amdgcn -mcpu=fiji -verify-machineinstrs -o /dev/null %s 2>&1 | FileCheck -check-prefix=GISEL-ERR %s
+; RUN: not --crash llc -global-isel=1 -march=amdgcn -mcpu=gfx900 -verify-machineinstrs -o /dev/null %s 2>&1 | FileCheck -check-prefix=GISEL-ERR %s
 
 ; Make sure this doesn't assert on targets without the g16 feature, and instead
 ; generates a selection error.
 
-; ERR: LLVM ERROR: Cannot select: intrinsic %llvm.amdgcn.image.sample.d.1d
+; SDAG-ERR: LLVM ERROR: Cannot select: intrinsic %llvm.amdgcn.image.sample.d.1d
+; GISEL-ERR: LLVM ERROR: unable to legalize instruction: %{{[0-9]+}}:_(<4 x s32>) = G_AMDGPU_INTRIN_IMAGE_LOAD intrinsic(@llvm.amdgcn.image.sample.d.1d), 15, %{{[0-9]+}}:_(s16), %{{[0-9]+}}:_(s16), %{{[0-9]+}}:_(s32), %{{[0-9]+}}:_(<8 x s32>), %{{[0-9]+}}:_(<4 x s32>), 0, 0, 0 :: (dereferenceable load 16 from custom "TargetCustom8") (in function: sample_d_1d)
 
 define amdgpu_ps <4 x float> @sample_d_1d(<8 x i32> inreg %rsrc, <4 x i32> inreg %samp, half %dsdh, half %dsdv, float %s) {
 main_body:
   %v = call <4 x float> @llvm.amdgcn.image.sample.d.1d.v4f32.f16.f32(i32 15, half %dsdh, half %dsdv, float %s, <8 x i32> %rsrc, <4 x i32> %samp, i1 0, i32 0, i32 0)
   ret <4 x float> %v
 }
 
 declare <4 x float> @llvm.amdgcn.image.sample.d.1d.v4f32.f16.f32(i32, half, half, float, <8 x i32>, <4 x i32>, i1, i32, i32) #0
 
 attributes #0 = { nounwind readonly }