f9b258c73a
This patch adds support for controlling the post-RA machine scheduler direction (topdown, bottomup, bidirectional) on a per-function basis using the "amdgpu-post-ra-direction" function attribute.
35 lines
1.2 KiB
LLVM
35 lines
1.2 KiB
LLVM
; REQUIRES: asserts
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; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1100 -debug-only=gcn-subtarget < %s 2>&1 | FileCheck %s
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; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1100 < %s 2>&1 | FileCheck -check-prefixes=WARNING %s
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; CHECK: Post-MI-sched direction (postra-sched-topdown): topdown
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define float @postra-sched-topdown(float %input) nounwind #0 {
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%x = fadd float %input, 1.000000e+00
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ret float %x
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}
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; CHECK: Post-MI-sched direction (postra-sched-bottomup): bottomup
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define float @postra-sched-bottomup(float %input) nounwind #1 {
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%x = fsub float %input, 1.000000e+00
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ret float %x
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}
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; CHECK: Post-MI-sched direction (postra-sched-bidirectional): bidirectional
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define float @postra-sched-bidirectional(float %input) nounwind #2 {
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%x = fadd float %input, 1.000000e+00
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ret float %x
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}
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; CHECK: Post-MI-sched direction (postra-sched-warning): topdown
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; WARNING: invalid value for postRA direction attribute
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define float @postra-sched-warning(float %input) nounwind #3 {
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%x = fsub float %input, 1.000000e+00
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ret float %x
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}
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attributes #0 = {"amdgpu-post-ra-direction"="topdown"}
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attributes #1 = {"amdgpu-post-ra-direction"="bottomup"}
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attributes #2 = {"amdgpu-post-ra-direction"="bidirectional"}
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attributes #3 = {"amdgpu-post-ra-direction"="warning"}
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