diff options
| author | Tom Stellard <thomas.stellard@amd.com> | 2016-02-12 23:45:29 +0000 |
|---|---|---|
| committer | Tom Stellard <thomas.stellard@amd.com> | 2016-02-12 23:45:29 +0000 |
| commit | bc4497b13ccc73e1c8c156350cc7fe50f9beae93 (patch) | |
| tree | 71e7e13564f64f708f17731941d9b73818cb5be9 /llvm/test/CodeGen/AMDGPU/si-spill-cf.ll | |
| parent | 0de36ec169b8c818487606658ed2504c88f4c0e7 (diff) | |
| download | bcm5719-llvm-bc4497b13ccc73e1c8c156350cc7fe50f9beae93.tar.gz bcm5719-llvm-bc4497b13ccc73e1c8c156350cc7fe50f9beae93.zip | |
AMDGPU/SI: Detect uniform branches and emit s_cbranch instructions
Reviewers: arsenm
Subscribers: mareko, MatzeB, qcolombet, arsenm, llvm-commits
Differential Revision: http://reviews.llvm.org/D16603
llvm-svn: 260765
Diffstat (limited to 'llvm/test/CodeGen/AMDGPU/si-spill-cf.ll')
| -rw-r--r-- | llvm/test/CodeGen/AMDGPU/si-spill-cf.ll | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/llvm/test/CodeGen/AMDGPU/si-spill-cf.ll b/llvm/test/CodeGen/AMDGPU/si-spill-cf.ll index 3c6c9760f94..d407d6eb926 100644 --- a/llvm/test/CodeGen/AMDGPU/si-spill-cf.ll +++ b/llvm/test/CodeGen/AMDGPU/si-spill-cf.ll @@ -80,7 +80,8 @@ main_body: LOOP: ; preds = %ENDIF2795, %main_body %temp894.0 = phi float [ 0.000000e+00, %main_body ], [ %temp894.1, %ENDIF2795 ] %temp18.0 = phi float [ undef, %main_body ], [ %temp18.1, %ENDIF2795 ] - %67 = icmp sgt i32 undef, 4 + %tid = call i32 @llvm.amdgcn.mbcnt.lo(i32 -1, i32 0) #2 + %67 = icmp sgt i32 %tid, 4 br i1 %67, label %ENDLOOP, label %ENDIF ENDLOOP: ; preds = %ELSE2566, %LOOP @@ -228,13 +229,19 @@ ENDIF: ; preds = %LOOP %199 = fcmp olt float undef, %.temp292.9 %200 = and i1 %198, %199 %temp292.11 = select i1 %200, float undef, float %.temp292.9 - br i1 undef, label %IF2565, label %ELSE2566 + %tid0 = call i32 @llvm.amdgcn.mbcnt.lo(i32 -1, i32 0) #2 + %cmp0 = icmp eq i32 %tid0, 0 + br i1 %cmp0, label %IF2565, label %ELSE2566 IF2565: ; preds = %ENDIF - br i1 false, label %ENDIF2582, label %ELSE2584 + %tid1 = call i32 @llvm.amdgcn.mbcnt.lo(i32 -1, i32 0) #2 + %cmp1 = icmp eq i32 %tid1, 0 + br i1 %cmp1, label %ENDIF2582, label %ELSE2584 ELSE2566: ; preds = %ENDIF - %201 = fcmp oeq float %temp292.11, 1.000000e+04 + %tid2 = call i32 @llvm.amdgcn.mbcnt.lo(i32 -1, i32 0) #2 + %tidf = bitcast i32 %tid2 to float + %201 = fcmp oeq float %temp292.11, %tidf br i1 %201, label %ENDLOOP, label %ELSE2593 ENDIF2564: ; preds = %ENDIF2594, %ENDIF2588 @@ -248,7 +255,9 @@ ENDIF2564: ; preds = %ENDIF2594, %ENDIF25 %207 = fcmp ogt float undef, 0.000000e+00 %208 = fcmp olt float undef, 1.000000e+00 %209 = and i1 %207, %208 - %210 = fcmp olt float undef, %206 + %tid3 = call i32 @llvm.amdgcn.mbcnt.lo(i32 -1, i32 0) #2 + %tidf3 = bitcast i32 %tid3 to float + %210 = fcmp olt float %tidf3, %206 %211 = and i1 %209, %210 br i1 %211, label %ENDIF2795, label %ELSE2797 @@ -260,7 +269,9 @@ ENDIF2582: ; preds = %ELSE2584, %IF2565 %213 = fadd float 0.000000e+00, %212 %floor = call float @llvm.floor.f32(float %213) %214 = fsub float %213, %floor - br i1 undef, label %IF2589, label %ELSE2590 + %tid4 = call i32 @llvm.amdgcn.mbcnt.lo(i32 -1, i32 0) #2 + %cmp4 = icmp eq i32 %tid4, 0 + br i1 %cmp4, label %IF2589, label %ELSE2590 IF2589: ; preds = %ENDIF2582 br label %ENDIF2588 @@ -479,6 +490,8 @@ ELSE2824: ; preds = %ELSE2821 br label %ENDIF2795 } +declare i32 @llvm.amdgcn.mbcnt.lo(i32, i32) #2 + ; Function Attrs: nounwind readnone declare float @llvm.SI.load.const(<16 x i8>, i32) #2 |
