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c7da15d985
Before this patch, the following stores in `merge_fail` would fail to be
merged, while they would get merged in `merge_ok`:
```
void use(unsigned long long *);
void merge_fail(unsigned key, unsigned index)
{
unsigned long long args[8];
args[0] = key;
args[1] = index;
use(args);
}
void merge_ok(unsigned long long *dst, unsigned a, unsigned b)
{
dst[0] = a;
dst[1] = b;
}
```
The reason is that `getMemOpBaseImmOfs` would return false for FI base
operands.
This adds support for this.
Differential Revision: https://reviews.llvm.org/D54847
llvm-svn: 347747
28 lines
687 B
YAML
28 lines
687 B
YAML
#RUN: llc -mtriple=aarch64-- -mcpu=cyclone -run-pass machine-scheduler -o - %s | FileCheck %s
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...
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---
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name: merge_stack
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# CHECK-LABEL: name: merge_stack
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tracksRegLiveness: true
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stack:
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- { id: 0, size: 64, alignment: 8 }
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body: |
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bb.0:
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liveins: $w0, $w1
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%0:gpr32 = COPY $w0
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%1:gpr32 = COPY $w1
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undef %3.sub_32:gpr64 = ORRWrs $wzr, %0, 0
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STRXui %3, %stack.0, 0 :: (store 8)
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undef %5.sub_32:gpr64 = ORRWrs $wzr, %1, 0
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STRXui %5, %stack.0, 1 :: (store 8)
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RET_ReallyLR
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; CHECK: COPY
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; CHECK-NEXT: COPY
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; CHECK-NEXT: ORRWrs
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; CHECK-NEXT: ORRWrs
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; CHECK-NEXT: STRXui
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; CHECK-NEXT: STRXui
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; CHECK-NEXT: RET
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