mirror of
https://github.com/c64scene-ar/llvm-6502.git
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7c9c6ed761
Essentially the same as the GEP change in r230786.
A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)
import fileinput
import sys
import re
pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")
for line in sys.stdin:
sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))
Reviewers: rafael, dexonsmith, grosser
Differential Revision: http://reviews.llvm.org/D7649
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
47 lines
2.6 KiB
LLVM
47 lines
2.6 KiB
LLVM
; RUN: llc < %s -march=x86-64 | grep lea | count 13
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; This testcase was written to demonstrate an instruction-selection problem,
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; however it also happens to expose a limitation in the DAGCombiner's
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; expression reassociation which causes it to miss opportunities for
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; constant folding due to the intermediate adds having multiple uses.
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; The Reassociate pass has similar limitations. If these limitations are
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; fixed, the test commands above will need to be updated to expect fewer
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; lea instructions.
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@g0 = weak global [1000 x i32] zeroinitializer, align 32 ; <[1000 x i32]*> [#uses=8]
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@g1 = weak global [1000 x i32] zeroinitializer, align 32 ; <[1000 x i32]*> [#uses=7]
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define void @foo() {
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entry:
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%tmp4 = load i32, i32* getelementptr ([1000 x i32]* @g0, i32 0, i32 0) ; <i32> [#uses=1]
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%tmp8 = load i32, i32* getelementptr ([1000 x i32]* @g1, i32 0, i32 0) ; <i32> [#uses=1]
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%tmp9 = add i32 %tmp4, 1 ; <i32> [#uses=1]
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%tmp10 = add i32 %tmp9, %tmp8 ; <i32> [#uses=2]
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store i32 %tmp10, i32* getelementptr ([1000 x i32]* @g0, i32 0, i32 1)
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%tmp8.1 = load i32, i32* getelementptr ([1000 x i32]* @g1, i32 0, i32 1) ; <i32> [#uses=1]
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%tmp9.1 = add i32 %tmp10, 1 ; <i32> [#uses=1]
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%tmp10.1 = add i32 %tmp9.1, %tmp8.1 ; <i32> [#uses=2]
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store i32 %tmp10.1, i32* getelementptr ([1000 x i32]* @g0, i32 0, i32 2)
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%tmp8.2 = load i32, i32* getelementptr ([1000 x i32]* @g1, i32 0, i32 2) ; <i32> [#uses=1]
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%tmp9.2 = add i32 %tmp10.1, 1 ; <i32> [#uses=1]
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%tmp10.2 = add i32 %tmp9.2, %tmp8.2 ; <i32> [#uses=2]
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store i32 %tmp10.2, i32* getelementptr ([1000 x i32]* @g0, i32 0, i32 3)
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%tmp8.3 = load i32, i32* getelementptr ([1000 x i32]* @g1, i32 0, i32 3) ; <i32> [#uses=1]
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%tmp9.3 = add i32 %tmp10.2, 1 ; <i32> [#uses=1]
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%tmp10.3 = add i32 %tmp9.3, %tmp8.3 ; <i32> [#uses=2]
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store i32 %tmp10.3, i32* getelementptr ([1000 x i32]* @g0, i32 0, i32 4)
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%tmp8.4 = load i32, i32* getelementptr ([1000 x i32]* @g1, i32 0, i32 4) ; <i32> [#uses=1]
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%tmp9.4 = add i32 %tmp10.3, 1 ; <i32> [#uses=1]
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%tmp10.4 = add i32 %tmp9.4, %tmp8.4 ; <i32> [#uses=2]
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store i32 %tmp10.4, i32* getelementptr ([1000 x i32]* @g0, i32 0, i32 5)
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%tmp8.5 = load i32, i32* getelementptr ([1000 x i32]* @g1, i32 0, i32 5) ; <i32> [#uses=1]
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%tmp9.5 = add i32 %tmp10.4, 1 ; <i32> [#uses=1]
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%tmp10.5 = add i32 %tmp9.5, %tmp8.5 ; <i32> [#uses=2]
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store i32 %tmp10.5, i32* getelementptr ([1000 x i32]* @g0, i32 0, i32 6)
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%tmp8.6 = load i32, i32* getelementptr ([1000 x i32]* @g1, i32 0, i32 6) ; <i32> [#uses=1]
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%tmp9.6 = add i32 %tmp10.5, 1 ; <i32> [#uses=1]
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%tmp10.6 = add i32 %tmp9.6, %tmp8.6 ; <i32> [#uses=1]
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store i32 %tmp10.6, i32* getelementptr ([1000 x i32]* @g0, i32 0, i32 7)
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ret void
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}
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