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MC,AMDGPU: Don't pad .text with s_code_end if it would otherwise be empty #147980
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Original file line number | Diff line number | Diff line change |
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; Test that there is no s_code_end padding if .text is othertwise empty. | ||
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; RUN: llc -mtriple=amdgcn--amdpal -mcpu=gfx1200 < %s | FileCheck %s --check-prefixes=GCN | ||
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@globalVar = global i32 37 | ||
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declare amdgpu_ps void @funcDecl() | ||
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; GCN-NOT: .fill |
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emitInstruction is a performance bottleneck. Caution needed when making changes.
getCurrentSectionOnly is efficient. getCurrentSection is not, and the nullness check is redundant. I haven't checked in detail, but adding
Sec->setHasInstructions(true);
to MCAsmStreamer is likely better .