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AMDGPU: Promote signext/zeroext i16 shader returns

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This makes them consistent with all the other return convention
handling. If we don't do this, we lose the sext/zext flag if treated
as a full assignment, which complicates a future GlobalISel patch.
This commit is contained in:
Matt Arsenault 2021-07-12 12:58:56 -04:00
parent 57c0d2e25b
commit 450c66a2d7
1 changed files with 1 additions and 0 deletions
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lib/Target/AMDGPU/AMDGPUCallingConv.td
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@ -107,6 +107,7 @@ def CC_SI_SHADER : CallingConv<[
]>;
def RetCC_SI_Shader : CallingConv<[
CCIfType<[i1, i16], CCIfExtend<CCPromoteToType<i32>>>,
CCIfType<[i32, i16] , CCAssignToReg<[
SGPR0, SGPR1, SGPR2, SGPR3, SGPR4, SGPR5, SGPR6, SGPR7,
SGPR8, SGPR9, SGPR10, SGPR11, SGPR12, SGPR13, SGPR14, SGPR15,