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llvm-project/llvm/test/CodeGen/X86/commute-two-addr.ll

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Add several testcases for new optimizations in the code generator. llvm-svn: 19244
2005-01-02 10:30:04 +08:00
; The register allocator can commute two-address instructions to avoid
; insertion of register-register copies.
tweak test to accept the (good) code emitted by the pattern isel llvm-svn: 21812
2005-05-09 13:54:27 +08:00
; Make sure there are only 3 mov's for each testcase
Add -mcpu to some unit tests that only fail on certain hosts. llvm-svn: 184709
2013-06-24 17:51:30 +08:00
; RUN: llc < %s -mtriple=i686-pc-linux-gnu -mcpu=corei7 | FileCheck %s -check-prefix=LINUX
; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7 | FileCheck %s -check-prefix=DARWIN
Add several testcases for new optimizations in the code generator. llvm-svn: 19244
2005-01-02 10:30:04 +08:00
set the target triple so that we don't fail due to X86 abi issues llvm-svn: 22479
2005-07-20 11:56:48 +08:00
Remove llvm-upgrade and update tests. llvm-svn: 47432
2008-02-21 15:42:26 +08:00
@G = external global i32 ; <i32*> [#uses=2]
set the target triple so that we don't fail due to X86 abi issues llvm-svn: 22479
2005-07-20 11:56:48 +08:00
Remove llvm-upgrade and update tests. llvm-svn: 47432
2008-02-21 15:42:26 +08:00
declare void @ext(i32)
Add several testcases for new optimizations in the code generator. llvm-svn: 19244
2005-01-02 10:30:04 +08:00
Fix a minor bug in two-address pass. It was missing a commute opportunity. regB = move RCX regA = op regB, regC RAX = move regA where both regB and regC are killed. If regB is constrainted to non-compatible physical registers but regC is not constrainted at all, then it's better to commute the instruction. movl %edi, %eax shlq $32, %rcx leaq (%rcx,%rax), %rax => movl %edi, %eax shlq $32, %rcx orq %rcx, %rax rdar://8762995 llvm-svn: 121793
2010-12-15 05:34:53 +08:00
define i32 @t1(i32 %X, i32 %Y) nounwind {
Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally. This update was done with the following bash script: find test/CodeGen -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc.*debug" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_-]*\):\( *\)$FUNC: *\$/;\1\2-LABEL:\3$FUNC:/g" $TEMP done sed -i '' "s/;\(.*\)-LABEL-LABEL:/;\1-LABEL:/" $TEMP sed -i '' "s/;\(.*\)-NEXT-LABEL:/;\1-NEXT:/" $TEMP sed -i '' "s/;\(.*\)-NOT-LABEL:/;\1-NOT:/" $TEMP sed -i '' "s/;\(.*\)-DAG-LABEL:/;\1-DAG:/" $TEMP mv $TEMP $NAME fi done llvm-svn: 186280
2013-07-14 14:24:09 +08:00
; LINUX-LABEL: t1:
Fix a minor bug in two-address pass. It was missing a commute opportunity. regB = move RCX regA = op regB, regC RAX = move regA where both regB and regC are killed. If regB is constrainted to non-compatible physical registers but regC is not constrainted at all, then it's better to commute the instruction. movl %edi, %eax shlq $32, %rcx leaq (%rcx,%rax), %rax => movl %edi, %eax shlq $32, %rcx orq %rcx, %rax rdar://8762995 llvm-svn: 121793
2010-12-15 05:34:53 +08:00
; LINUX: movl 4(%esp), %eax
; LINUX: movl 8(%esp), %ecx
; LINUX: addl %eax, %ecx
; LINUX: movl %ecx, G
Remove llvm-upgrade and update tests. llvm-svn: 47432
2008-02-21 15:42:26 +08:00
%Z = add i32 %X, %Y ; <i32> [#uses=1]
store i32 %Z, i32* @G
ret i32 %X
Add several testcases for new optimizations in the code generator. llvm-svn: 19244
2005-01-02 10:30:04 +08:00
}
Fix a minor bug in two-address pass. It was missing a commute opportunity. regB = move RCX regA = op regB, regC RAX = move regA where both regB and regC are killed. If regB is constrainted to non-compatible physical registers but regC is not constrainted at all, then it's better to commute the instruction. movl %edi, %eax shlq $32, %rcx leaq (%rcx,%rax), %rax => movl %edi, %eax shlq $32, %rcx orq %rcx, %rax rdar://8762995 llvm-svn: 121793
2010-12-15 05:34:53 +08:00
define i32 @t2(i32 %X, i32 %Y) nounwind {
Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally. This update was done with the following bash script: find test/CodeGen -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc.*debug" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_-]*\):\( *\)$FUNC: *\$/;\1\2-LABEL:\3$FUNC:/g" $TEMP done sed -i '' "s/;\(.*\)-LABEL-LABEL:/;\1-LABEL:/" $TEMP sed -i '' "s/;\(.*\)-NEXT-LABEL:/;\1-NEXT:/" $TEMP sed -i '' "s/;\(.*\)-NOT-LABEL:/;\1-NOT:/" $TEMP sed -i '' "s/;\(.*\)-DAG-LABEL:/;\1-DAG:/" $TEMP mv $TEMP $NAME fi done llvm-svn: 186280
2013-07-14 14:24:09 +08:00
; LINUX-LABEL: t2:
Fix a minor bug in two-address pass. It was missing a commute opportunity. regB = move RCX regA = op regB, regC RAX = move regA where both regB and regC are killed. If regB is constrainted to non-compatible physical registers but regC is not constrainted at all, then it's better to commute the instruction. movl %edi, %eax shlq $32, %rcx leaq (%rcx,%rax), %rax => movl %edi, %eax shlq $32, %rcx orq %rcx, %rax rdar://8762995 llvm-svn: 121793
2010-12-15 05:34:53 +08:00
; LINUX: movl 4(%esp), %eax
; LINUX: movl 8(%esp), %ecx
; LINUX: xorl %eax, %ecx
; LINUX: movl %ecx, G
Remove llvm-upgrade and update tests. llvm-svn: 47432
2008-02-21 15:42:26 +08:00
%Z = xor i32 %X, %Y ; <i32> [#uses=1]
store i32 %Z, i32* @G
ret i32 %X
Add several testcases for new optimizations in the code generator. llvm-svn: 19244
2005-01-02 10:30:04 +08:00
}
Remove llvm-upgrade and update tests. llvm-svn: 47432
2008-02-21 15:42:26 +08:00
Fix a minor bug in two-address pass. It was missing a commute opportunity. regB = move RCX regA = op regB, regC RAX = move regA where both regB and regC are killed. If regB is constrainted to non-compatible physical registers but regC is not constrainted at all, then it's better to commute the instruction. movl %edi, %eax shlq $32, %rcx leaq (%rcx,%rax), %rax => movl %edi, %eax shlq $32, %rcx orq %rcx, %rax rdar://8762995 llvm-svn: 121793
2010-12-15 05:34:53 +08:00
; rdar://8762995
%0 = type { i64, i32 }
define %0 @t3(i32 %lb, i8 zeroext %has_lb, i8 zeroext %lb_inclusive, i32 %ub, i8 zeroext %has_ub, i8 zeroext %ub_inclusive) nounwind {
entry:
Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally. This update was done with the following bash script: find test/CodeGen -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc.*debug" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_-]*\):\( *\)$FUNC: *\$/;\1\2-LABEL:\3$FUNC:/g" $TEMP done sed -i '' "s/;\(.*\)-LABEL-LABEL:/;\1-LABEL:/" $TEMP sed -i '' "s/;\(.*\)-NEXT-LABEL:/;\1-NEXT:/" $TEMP sed -i '' "s/;\(.*\)-NOT-LABEL:/;\1-NOT:/" $TEMP sed -i '' "s/;\(.*\)-DAG-LABEL:/;\1-DAG:/" $TEMP mv $TEMP $NAME fi done llvm-svn: 186280
2013-07-14 14:24:09 +08:00
; DARWIN-LABEL: t3:
Fix a minor bug in two-address pass. It was missing a commute opportunity. regB = move RCX regA = op regB, regC RAX = move regA where both regB and regC are killed. If regB is constrainted to non-compatible physical registers but regC is not constrainted at all, then it's better to commute the instruction. movl %edi, %eax shlq $32, %rcx leaq (%rcx,%rax), %rax => movl %edi, %eax shlq $32, %rcx orq %rcx, %rax rdar://8762995 llvm-svn: 121793
2010-12-15 05:34:53 +08:00
; DARWIN: shlq $32, %rcx
Enable MI Sched for x86. This changes the SelectionDAG scheduling preference to source order. Soon, the SelectionDAG scheduler can be bypassed saving a nice chunk of compile time. Performance differences that result from this change are often a consequence of register coalescing. The register coalescer is far from perfect. Bugs can be filed for deficiencies. On x86 SandyBridge/Haswell, the source order schedule is often preserved, particularly for small blocks. Register pressure is generally improved over the SD scheduler's ILP mode. However, we are still able to handle large blocks that require latency hiding, unlike the SD scheduler's BURR mode. MI scheduler also attempts to discover the critical path in single-block loops and adjust heuristics accordingly. The MI scheduler relies on the new machine model. This is currently unimplemented for AVX, so we may not be generating the best code yet. Unit tests are updated so they don't depend on SD scheduling heuristics. llvm-svn: 192750
2013-10-16 07:33:07 +08:00
; DARWIN-NEXT: orq %rcx, %rax
; DARWIN-NEXT: shll $8
Fix a minor bug in two-address pass. It was missing a commute opportunity. regB = move RCX regA = op regB, regC RAX = move regA where both regB and regC are killed. If regB is constrainted to non-compatible physical registers but regC is not constrainted at all, then it's better to commute the instruction. movl %edi, %eax shlq $32, %rcx leaq (%rcx,%rax), %rax => movl %edi, %eax shlq $32, %rcx orq %rcx, %rax rdar://8762995 llvm-svn: 121793
2010-12-15 05:34:53 +08:00
; DARWIN-NOT: leaq
%tmp21 = zext i32 %lb to i64
%tmp23 = zext i32 %ub to i64
%tmp24 = shl i64 %tmp23, 32
%ins26 = or i64 %tmp24, %tmp21
%tmp28 = zext i8 %has_lb to i32
%tmp33 = zext i8 %has_ub to i32
%tmp34 = shl i32 %tmp33, 8
%tmp38 = zext i8 %lb_inclusive to i32
%tmp39 = shl i32 %tmp38, 16
%tmp43 = zext i8 %ub_inclusive to i32
%tmp44 = shl i32 %tmp43, 24
%ins31 = or i32 %tmp39, %tmp28
%ins36 = or i32 %ins31, %tmp34
%ins46 = or i32 %ins36, %tmp44
%tmp16 = insertvalue %0 undef, i64 %ins26, 0
%tmp19 = insertvalue %0 %tmp16, i32 %ins46, 1
ret %0 %tmp19
}