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revert upstream radeonsi breaking change.
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Dave Airlie
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2 changed files with 126 additions and 1 deletions
119
0001-Revert-Merging-r280589.patch
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119
0001-Revert-Merging-r280589.patch
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From 95b15b3d2f180b15267032e16c947c0f9b8a112d Mon Sep 17 00:00:00 2001
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From: Dave Airlie <airlied@redhat.com>
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Date: Wed, 1 Mar 2017 13:02:38 +1000
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Subject: [PATCH] Revert "Merging r280589:"
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This reverts commit 25e2616626caafb896517e18cd8aa724fba2b200.
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---
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lib/Target/AMDGPU/SIInstructions.td | 1 -
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lib/Target/AMDGPU/SIWholeQuadMode.cpp | 7 +++++
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test/CodeGen/AMDGPU/wqm.ll | 49 +++--------------------------------
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3 files changed, 11 insertions(+), 46 deletions(-)
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diff --git a/lib/Target/AMDGPU/SIInstructions.td b/lib/Target/AMDGPU/SIInstructions.td
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index dde5f2f..18b7d5d 100644
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--- a/lib/Target/AMDGPU/SIInstructions.td
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+++ b/lib/Target/AMDGPU/SIInstructions.td
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@@ -2029,7 +2029,6 @@ def SI_RETURN : PseudoInstSI <
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let hasSideEffects = 1;
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let SALU = 1;
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let hasNoSchedulingInfo = 1;
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- let DisableWQM = 1;
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}
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let Uses = [EXEC], Defs = [EXEC, VCC, M0],
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diff --git a/lib/Target/AMDGPU/SIWholeQuadMode.cpp b/lib/Target/AMDGPU/SIWholeQuadMode.cpp
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index 1534d58..b200c15 100644
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--- a/lib/Target/AMDGPU/SIWholeQuadMode.cpp
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+++ b/lib/Target/AMDGPU/SIWholeQuadMode.cpp
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@@ -219,6 +219,13 @@ char SIWholeQuadMode::scanInstructions(MachineFunction &MF,
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markInstruction(MI, Flags, Worklist);
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GlobalFlags |= Flags;
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}
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+
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+ if (WQMOutputs && MBB.succ_empty()) {
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+ // This is a prolog shader. Make sure we go back to exact mode at the end.
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+ Blocks[&MBB].OutNeeds = StateExact;
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+ Worklist.push_back(&MBB);
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+ GlobalFlags |= StateExact;
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+ }
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}
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return GlobalFlags;
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diff --git a/test/CodeGen/AMDGPU/wqm.ll b/test/CodeGen/AMDGPU/wqm.ll
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index 41e4264..809a7ba 100644
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--- a/test/CodeGen/AMDGPU/wqm.ll
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+++ b/test/CodeGen/AMDGPU/wqm.ll
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@@ -17,18 +17,17 @@ main_body:
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;CHECK-LABEL: {{^}}test2:
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;CHECK-NEXT: ; %main_body
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;CHECK-NEXT: s_wqm_b64 exec, exec
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+;CHECK: image_sample
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;CHECK-NOT: exec
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-define amdgpu_ps void @test2(<8 x i32> inreg %rsrc, <4 x i32> inreg %sampler, float addrspace(1)* inreg %ptr, <4 x i32> %c) {
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+;CHECK: _load_dword v0,
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+define amdgpu_ps float @test2(<8 x i32> inreg %rsrc, <4 x i32> inreg %sampler, float addrspace(1)* inreg %ptr, <4 x i32> %c) {
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main_body:
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%c.1 = call <4 x float> @llvm.SI.image.sample.v4i32(<4 x i32> %c, <8 x i32> %rsrc, <4 x i32> %sampler, i32 15, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0)
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%c.2 = bitcast <4 x float> %c.1 to <4 x i32>
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%c.3 = extractelement <4 x i32> %c.2, i32 0
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%gep = getelementptr float, float addrspace(1)* %ptr, i32 %c.3
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%data = load float, float addrspace(1)* %gep
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-
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- call void @llvm.SI.export(i32 15, i32 1, i32 1, i32 0, i32 1, float %data, float undef, float undef, float undef)
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-
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- ret void
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+ ret float %data
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}
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; ... but disabled for stores (and, in this simple case, not re-enabled).
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@@ -415,46 +414,6 @@ entry:
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ret void
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}
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-; Must return to exact at the end of a non-void returning shader,
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-; otherwise the EXEC mask exported by the epilog will be wrong. This is true
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-; even if the shader has no kills, because a kill could have happened in a
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-; previous shader fragment.
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-;
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-; CHECK-LABEL: {{^}}test_nonvoid_return:
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-; CHECK: s_mov_b64 [[LIVE:s\[[0-9]+:[0-9]+\]]], exec
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-; CHECK: s_wqm_b64 exec, exec
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-;
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-; CHECK: s_and_b64 exec, exec, [[LIVE]]
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-; CHECK-NOT: exec
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-define amdgpu_ps <4 x float> @test_nonvoid_return() nounwind {
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- %tex = call <4 x float> @llvm.SI.image.sample.v4i32(<4 x i32> undef, <8 x i32> undef, <4 x i32> undef, i32 15, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0)
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- %tex.i = bitcast <4 x float> %tex to <4 x i32>
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- %dtex = call <4 x float> @llvm.SI.image.sample.v4i32(<4 x i32> %tex.i, <8 x i32> undef, <4 x i32> undef, i32 15, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0)
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- ret <4 x float> %dtex
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-}
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-
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-; CHECK-LABEL: {{^}}test_nonvoid_return_unreachable:
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-; CHECK: s_mov_b64 [[LIVE:s\[[0-9]+:[0-9]+\]]], exec
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-; CHECK: s_wqm_b64 exec, exec
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-;
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-; CHECK: s_and_b64 exec, exec, [[LIVE]]
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-; CHECK-NOT: exec
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-define amdgpu_ps <4 x float> @test_nonvoid_return_unreachable(i32 inreg %c) nounwind {
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-entry:
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- %tex = call <4 x float> @llvm.SI.image.sample.v4i32(<4 x i32> undef, <8 x i32> undef, <4 x i32> undef, i32 15, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0)
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- %tex.i = bitcast <4 x float> %tex to <4 x i32>
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- %dtex = call <4 x float> @llvm.SI.image.sample.v4i32(<4 x i32> %tex.i, <8 x i32> undef, <4 x i32> undef, i32 15, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0)
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-
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- %cc = icmp sgt i32 %c, 0
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- br i1 %cc, label %if, label %else
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-
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-if:
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- store volatile <4 x float> %dtex, <4 x float>* undef
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- unreachable
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-
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-else:
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- ret <4 x float> %dtex
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-}
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declare void @llvm.amdgcn.image.store.v4i32(<4 x float>, <4 x i32>, <8 x i32>, i32, i1, i1, i1, i1) #1
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declare void @llvm.amdgcn.buffer.store.f32(float, <4 x i32>, i32, i32, i1, i1) #1
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--
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2.9.3
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@ -7,7 +7,7 @@
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Name: llvm
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Version: 3.9.1
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Release: 2%{?dist}
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Release: 3%{?dist}
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Summary: The Low Level Virtual Machine
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License: NCSA
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@ -28,6 +28,8 @@ Patch5: 0001-cmake-Install-CheckAtomic.cmake-needed-by-lldb.patch
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# Upstream patch to fix doc build
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# http://llvm.org/viewvc/llvm-project?view=revision&revision=294646
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Patch6: llvm-r294646.patch
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# This fix caused regressions
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Patch7: 0001-Revert-Merging-r280589.patch
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# backports cribbed from https://github.com/rust-lang/llvm/
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Patch47: rust-lang-llvm-pr47.patch
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@ -93,6 +95,7 @@ Static libraries for the LLVM compiler infrastructure.
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%patch4 -p1 -b .docs4
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%patch5 -p1 -b .lldbfix
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%patch6 -p0 -b .doc-lit
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%patch7 -p1 -b .amdfix
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%patch47 -p1 -b .rust47
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%patch53 -p1 -b .rust53
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%patch54 -p1 -b .rust54
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@ -214,6 +217,9 @@ make check-all || :
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%{_libdir}/*.a
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%changelog
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* Wed Mar 01 2017 Dave Airlie <airlied@redhat.com> - 3.9.1-3
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- revert upstream radeonsi breaking change.
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* Thu Feb 23 2017 Josh Stone <jistone@redhat.com> - 3.9.1-2
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- disable sphinx warnings-as-errors
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