Fix instruction order issue in scalarizer #5001
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When scalarize shuffle inst which has extract element as the input element, create clone before the shuffle instead of after. Because later when replace the shuffle, new vector will be inserted before the shuffle. The elt will be after its use if inserted before the shuffle earlier.
tex3d
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Feb 8, 2023
pow2clk
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When scalarize shuffle inst which has extract element as the input element, create clone before the shuffle instead of after. Because later when replace the shuffle, new vector will be inserted before the shuffle. The elt define will be after its use if inserted before the shuffle earlier. Like %[[B:.+]] = load <2 x float>, <2 x float>* %b, align 4 %[[X:.+]] = insertelement <4 x float> undef, float %[[BX0]], i32 0 %[[Y:.+]] = insertelement <4 x float> %[[X]], float %[[BY0]], i32 1 %[[Z:.+]] = insertelement <4 x float> %[[Y]], float %[[BX1]], i32 2 %[[W:.+]] = insertelement <4 x float> %[[Z]], float %[[BY1]], i32 3 %[[BX0:.+]] = extractelement <2 x float> %[[B]], i32 0 %[[BY0:.+]] = extractelement <2 x float> %[[B]], i32 1 %[[BX1:.+]] = extractelement <2 x float> %[[B]], i32 0 %[[BY1:.+]] = extractelement <2 x float> %[[B]], i32 1 (cherry picked from commit b3dedc9)
pow2clk
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Merge relevant changes into release 1.7.2212 7ce4986 Fix opt.exe external lib loading (#5049) 8f4d1f4 PIX: DxcPixDxilInstructionOffsets should operate on libs (#5046) 0795b94 Fix AppVeyor Linux tests failing loading dxil.so (#5024) 6d3574a Remove SO version from unix binaries (#5010) 6d480fd Allow libdxcompiler.so and dxc to find libdxil.so (#5004) d751bd8 Correct WinAdapter path assumptions in public headers (#5003) 484f1b0 Fix instruction order issue in scalarizer (#5001) d9d83d0 Fix two issues found in our internal build (#5002) c8603e4 Added a workaround for PDBs with empty defines. (#4945) 073d860 [bug] Fix memory leak in dxil validator (#4966) 87fc5b5 PIX: Symbol manager: don't allow static members to contribute to member offsets (#4952) 8588ecb Turn off structurize-returns when cleanup blocks are present. (#4927) bac7aa7 build: disable LLVM_ENABLE_TERMINFO by default. (#4908)
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When scalarize shuffle inst which has extract element as the input element, create clone before the shuffle instead of after.
Because later when replace the shuffle, new vector will be inserted before the shuffle. The elt will be after its use if inserted before the shuffle earlier.