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llvm-mirror/test/CodeGen/Mips/shrink-wrap-buildpairf64-extractelementf64.mir
Vladimir Stefanovic ed6ba15bd1 [mips] Prevent shrink-wrap for BuildPairF64, ExtractElementF64 when they use $sp
For a certain combination of options, BuildPairF64_{64}, ExtractElementF64{_64}
may be expanded into instructions using stack.
Add implicit operand $sp for such cases so that ShrinkWrapping doesn't move
prologue setup below them.

Fixes MultiSource/Benchmarks/MallocBench/cfrac for
'--target=mips-img-linux-gnu -mcpu=mips32r6 -mfpxx -mnan=2008'
and
'--target=mips-img-linux-gnu -mcpu=mips32r6 -mfp64 -mnan=2008 -mno-odd-spreg'.

Differential Revision: https://reviews.llvm.org/D50986

llvm-svn: 340927
2018-08-29 14:07:14 +00:00

151 lines
3.1 KiB
YAML

# RUN: llc -o - %s -mtriple=mips-unknown-linux-gnu -enable-shrink-wrap=true \
# RUN: -start-before=shrink-wrap -stop-after=prologepilog | FileCheck %s
--- |
declare void @foo()
define void @testBuildPairF64() {
ret void
}
define void @testBuildPairF64_64() {
ret void
}
define void @testBuildPairF64implicitSp() {
ret void
}
define void @testBuildPairF64_64implicitSp() {
ret void
}
define void @testExtractElementF64() {
ret void
}
define void @testExtractElementF64_64() {
ret void
}
define void @testExtractElementF64implicitSp() {
ret void
}
define void @testExtractElementF64_64implicitSp() {
ret void
}
...
---
name: testBuildPairF64
# CHECK-LABEL: name: testBuildPairF64
# CHECK: bb.0
# CHECK-NEXT: successors
# CHECK-NEXT: {{[[:space:]]$}}
# CHECK-NEXT: BuildPairF64
body: |
bb.0:
$d0 = BuildPairF64 $zero, $zero
bb.1:
JAL @foo, implicit-def $ra
bb.2:
RetRA
...
---
name: testBuildPairF64_64
# CHECK-LABEL: name: testBuildPairF64_64
# CHECK: bb.0
# CHECK-NEXT: successors
# CHECK-NEXT: {{[[:space:]]$}}
# CHECK-NEXT: BuildPairF64_64
body: |
bb.0:
$d0_64 = BuildPairF64_64 $zero, $zero
bb.1:
JAL @foo, implicit-def $ra
bb.2:
RetRA
...
---
name: testBuildPairF64implicitSp
# CHECK-LABEL: name: testBuildPairF64implicitSp
# CHECK: bb.0
# CHECK-NEXT: successors
# CHECK-NEXT: {{[[:space:]]$}}
# CHECK-NEXT: $sp = ADDiu $sp, -{{[0-9]+}}
body: |
bb.0:
$d0 = BuildPairF64 $zero, $zero, implicit $sp
bb.1:
JAL @foo, implicit-def $ra
bb.2:
RetRA
...
---
name: testBuildPairF64_64implicitSp
# CHECK-LABEL: name: testBuildPairF64_64implicitSp
# CHECK: bb.0
# CHECK-NEXT: successors
# CHECK-NEXT: {{[[:space:]]$}}
# CHECK-NEXT: $sp = ADDiu $sp, -{{[0-9]+}}
body: |
bb.0:
$d0_64 = BuildPairF64_64 $zero, $zero, implicit $sp
bb.1:
JAL @foo, implicit-def $ra
bb.2:
RetRA
...
---
name: testExtractElementF64
# CHECK-LABEL: name: testExtractElementF64
# CHECK: bb.0
# CHECK-NEXT: successors
# CHECK-NEXT: {{[[:space:]]$}}
# CHECK-NEXT: ExtractElementF64
body: |
bb.0:
$at = ExtractElementF64 $d6, 1
bb.1:
JAL @foo, implicit-def $ra
bb.2:
RetRA
...
---
name: testExtractElementF64_64
# CHECK-LABEL: name: testExtractElementF64_64
# CHECK: bb.0
# CHECK-NEXT: successors
# CHECK-NEXT: {{[[:space:]]$}}
# CHECK-NEXT: ExtractElementF64_64
body: |
bb.0:
$at = ExtractElementF64_64 $d12_64, 1
bb.1:
JAL @foo, implicit-def $ra
bb.2:
RetRA
...
---
name: testExtractElementF64implicitSp
# CHECK-LABEL: name: testExtractElementF64implicitSp
# CHECK: bb.0
# CHECK-NEXT: successors
# CHECK-NEXT: {{[[:space:]]$}}
# CHECK-NEXT: $sp = ADDiu $sp, -{{[0-9]+}}
body: |
bb.0:
$at = ExtractElementF64 $d6, 1, implicit $sp
bb.1:
JAL @foo, implicit-def $ra
bb.2:
RetRA
...
---
name: testExtractElementF64_64implicitSp
# CHECK-LABEL: name: testExtractElementF64_64implicitSp
# CHECK: bb.0
# CHECK-NEXT: successors
# CHECK-NEXT: {{[[:space:]]$}}
# CHECK-NEXT: $sp = ADDiu $sp, -{{[0-9]+}}
body: |
bb.0:
$at = ExtractElementF64_64 $d12_64, 1, implicit $sp
bb.1:
JAL @foo, implicit-def $ra
bb.2:
RetRA
...