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llvm-project/llvm/test/Transforms/DeadStoreElimination/PartialStore.ll

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clean up DSE tests, removing some poorly reduced and useless old test, merging more into other larger .ll files, filecheckizing along the way. llvm-svn: 120373
2010-11-30 09:00:34 +08:00
; RUN: opt < %s -basicaa -dse -S | FileCheck %s
target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
Add a comment, add a new testcase llvm-svn: 19179
2004-12-29 12:35:30 +08:00
; Ensure that the dead store is deleted in this case. It is wholely
; overwritten by the second store.
clean up DSE tests, removing some poorly reduced and useless old test, merging more into other larger .ll files, filecheckizing along the way. llvm-svn: 120373
2010-11-30 09:00:34 +08:00
define void @test1(i32 *%V) {
Remove llvm-upgrade and update test cases. llvm-svn: 47793
2008-03-01 17:15:35 +08:00
%V2 = bitcast i32* %V to i8* ; <i8*> [#uses=1]
store i8 0, i8* %V2
store i32 1234567, i32* %V
clean up DSE tests, removing some poorly reduced and useless old test, merging more into other larger .ll files, filecheckizing along the way. llvm-svn: 120373
2010-11-30 09:00:34 +08:00
ret void
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. This update was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc" $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 mv $TEMP $NAME fi done llvm-svn: 186268
2013-07-14 09:42:54 +08:00
; CHECK-LABEL: @test1(
clean up DSE tests, removing some poorly reduced and useless old test, merging more into other larger .ll files, filecheckizing along the way. llvm-svn: 120373
2010-11-30 09:00:34 +08:00
; CHECK-NEXT: store i32 1234567
Add a comment, add a new testcase llvm-svn: 19179
2004-12-29 12:35:30 +08:00
}
Remove llvm-upgrade and update test cases. llvm-svn: 47793
2008-03-01 17:15:35 +08:00
clean up DSE tests, removing some poorly reduced and useless old test, merging more into other larger .ll files, filecheckizing along the way. llvm-svn: 120373
2010-11-30 09:00:34 +08:00
; Note that we could do better by merging the two stores into one.
define void @test2(i32* %P) {
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. This update was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc" $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 mv $TEMP $NAME fi done llvm-svn: 186268
2013-07-14 09:42:54 +08:00
; CHECK-LABEL: @test2(
clean up DSE tests, removing some poorly reduced and useless old test, merging more into other larger .ll files, filecheckizing along the way. llvm-svn: 120373
2010-11-30 09:00:34 +08:00
store i32 0, i32* %P
; CHECK: store i32
%Q = bitcast i32* %P to i16*
store i16 1, i16* %Q
; CHECK: store i16
ret void
}
define i32 @test3(double %__x) {
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. This update was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc" $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 mv $TEMP $NAME fi done llvm-svn: 186268
2013-07-14 09:42:54 +08:00
; CHECK-LABEL: @test3(
clean up DSE tests, removing some poorly reduced and useless old test, merging more into other larger .ll files, filecheckizing along the way. llvm-svn: 120373
2010-11-30 09:00:34 +08:00
; CHECK: store double
%__u = alloca { [3 x i32] }
%tmp.1 = bitcast { [3 x i32] }* %__u to double*
store double %__x, double* %tmp.1
%tmp.4 = getelementptr { [3 x i32] }* %__u, i32 0, i32 0, i32 1
%tmp.5 = load i32* %tmp.4
%tmp.6 = icmp slt i32 %tmp.5, 0
%tmp.7 = zext i1 %tmp.6 to i32
ret i32 %tmp.7
}
teach DSE to use GetPointerBaseWithConstantOffset to analyze may-aliasing stores that partially overlap with different base pointers. This implements PR6043 and the non-variable part of PR8657 llvm-svn: 120485
2010-12-01 07:05:20 +08:00
; PR6043
define void @test4(i8* %P) {
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. This update was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc" $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 mv $TEMP $NAME fi done llvm-svn: 186268
2013-07-14 09:42:54 +08:00
; CHECK-LABEL: @test4(
teach DSE to use GetPointerBaseWithConstantOffset to analyze may-aliasing stores that partially overlap with different base pointers. This implements PR6043 and the non-variable part of PR8657 llvm-svn: 120485
2010-12-01 07:05:20 +08:00
; CHECK-NEXT: bitcast
; CHECK-NEXT: store double
store i8 19, i8* %P ;; dead
%A = getelementptr i8* %P, i32 3
Teach GetUnderlyingObject / BasicAA about addrspacecast llvm-svn: 213025
2014-07-15 08:56:40 +08:00
teach DSE to use GetPointerBaseWithConstantOffset to analyze may-aliasing stores that partially overlap with different base pointers. This implements PR6043 and the non-variable part of PR8657 llvm-svn: 120485
2010-12-01 07:05:20 +08:00
store i8 42, i8* %A ;; dead
Teach GetUnderlyingObject / BasicAA about addrspacecast llvm-svn: 213025
2014-07-15 08:56:40 +08:00
teach DSE to use GetPointerBaseWithConstantOffset to analyze may-aliasing stores that partially overlap with different base pointers. This implements PR6043 and the non-variable part of PR8657 llvm-svn: 120485
2010-12-01 07:05:20 +08:00
%Q = bitcast i8* %P to double*
store double 0.0, double* %Q
ret void
}
Enhance DSE to handle the variable index case in PR8657. llvm-svn: 120498
2010-12-01 07:43:23 +08:00
; PR8657
declare void @test5a(i32*)
define void @test5(i32 %i) nounwind ssp {
%A = alloca i32
%B = bitcast i32* %A to i8*
%C = getelementptr i8* %B, i32 %i
store i8 10, i8* %C ;; Dead store to variable index.
store i32 20, i32* %A
Teach GetUnderlyingObject / BasicAA about addrspacecast llvm-svn: 213025
2014-07-15 08:56:40 +08:00
Enhance DSE to handle the variable index case in PR8657. llvm-svn: 120498
2010-12-01 07:43:23 +08:00
call void @test5a(i32* %A)
ret void
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. This update was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc" $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 mv $TEMP $NAME fi done llvm-svn: 186268
2013-07-14 09:42:54 +08:00
; CHECK-LABEL: @test5(
Enhance DSE to handle the variable index case in PR8657. llvm-svn: 120498
2010-12-01 07:43:23 +08:00
; CHECK-NEXT: alloca
; CHECK-NEXT: store i32 20
; CHECK-NEXT: call void @test5a
}
Teach GetUnderlyingObject / BasicAA about addrspacecast llvm-svn: 213025
2014-07-15 08:56:40 +08:00
declare void @test5a_as1(i32*)
define void @test5_addrspacecast(i32 %i) nounwind ssp {
%A = alloca i32
%B = addrspacecast i32* %A to i8 addrspace(1)*
%C = getelementptr i8 addrspace(1)* %B, i32 %i
store i8 10, i8 addrspace(1)* %C ;; Dead store to variable index.
store i32 20, i32* %A
call void @test5a(i32* %A)
ret void
; CHECK-LABEL: @test5_addrspacecast(
; CHECK-NEXT: alloca
; CHECK-NEXT: store i32 20
; CHECK-NEXT: call void @test5a
}