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llvm-6502/test/CodeGen/ARM/struct_byval.ll

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ARM: add testing case for struct byval rdar://9877866 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157876 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-02 05:37:44 +00:00
; RUN: llc < %s -mtriple=armv7-apple-ios6.0 | FileCheck %s
; rdar://9877866
%struct.SmallStruct = type { i32, [8 x i32], [37 x i8] }
%struct.LargeStruct = type { i32, [1001 x i8], [300 x i32] }
define i32 @f() nounwind ssp {
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 $NAME fi done git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186280 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 06:24:09 +00:00
; CHECK-LABEL: f:
ARM: add testing case for struct byval rdar://9877866 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157876 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-02 05:37:44 +00:00
; CHECK: ldr
; CHECK: str
; CHECK-NOT:bne
%st = alloca %struct.SmallStruct, align 4
%call = call i32 @e1(%struct.SmallStruct* byval %st)
ret i32 0
}
; Generate a loop for large struct byval
define i32 @g() nounwind ssp {
entry:
Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally. This update was done with the following bash script: find test/CodeGen -name "*.ll" | \ while read NAME; do echo "$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 $NAME fi done git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186280 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 06:24:09 +00:00
; CHECK-LABEL: g:
ARM: add testing case for struct byval rdar://9877866 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157876 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-02 05:37:44 +00:00
; CHECK: ldr
; CHECK: sub
; CHECK: str
; CHECK: bne
%st = alloca %struct.LargeStruct, align 4
%call = call i32 @e2(%struct.LargeStruct* byval %st)
ret i32 0
}
ARM: use NOEN loads and stores if possible when handling struct byval. This change is to be enabled in clang. rdar://9877866 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158684 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-18 22:23:48 +00:00
; Generate a loop using NEON instructions
define i32 @h() nounwind ssp {
entry:
Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally. This update was done with the following bash script: find test/CodeGen -name "*.ll" | \ while read NAME; do echo "$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 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186280 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 06:24:09 +00:00
; CHECK-LABEL: h:
ARM: use NOEN loads and stores if possible when handling struct byval. This change is to be enabled in clang. rdar://9877866 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158684 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-18 22:23:48 +00:00
; CHECK: vld1
; CHECK: sub
; CHECK: vst1
; CHECK: bne
%st = alloca %struct.LargeStruct, align 16
%call = call i32 @e3(%struct.LargeStruct* byval align 16 %st)
ret i32 0
}
ARM: add testing case for struct byval rdar://9877866 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157876 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-02 05:37:44 +00:00
declare i32 @e1(%struct.SmallStruct* nocapture byval %in) nounwind
declare i32 @e2(%struct.LargeStruct* nocapture byval %in) nounwind
ARM: use NOEN loads and stores if possible when handling struct byval. This change is to be enabled in clang. rdar://9877866 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158684 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-18 22:23:48 +00:00
declare i32 @e3(%struct.LargeStruct* nocapture byval align 16 %in) nounwind
ARM: tail-call inside a function where part of a byval argument is on caller's local frame causes problem. For example: void f(StructToPass s) { g(&s, sizeof(s)); } will cause problem with tail-call since part of s is passed via registers and saved in f's local frame. When g tries to access s, part of s may be corrupted since f's local frame is popped out before the tail-call. The current fix is to disable tail-call if getVarArgsRegSaveSize is not 0 for the caller. This is a conservative approach, if we can prove the address of s or part of s is not taken and passed to g, it should be okay to perform tail-call. rdar://12442472 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165853 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-12 23:39:43 +00:00
; rdar://12442472
; We can't do tail call since address of s is passed to the callee and part of
; s is in caller's local frame.
define void @f3(%struct.SmallStruct* nocapture byval %s) nounwind optsize {
; CHECK: f3
; CHECK: bl _consumestruct
entry:
%0 = bitcast %struct.SmallStruct* %s to i8*
tail call void @consumestruct(i8* %0, i32 80) optsize
ret void
}
define void @f4(%struct.SmallStruct* nocapture byval %s) nounwind optsize {
; CHECK: f4
; CHECK: bl _consumestruct
entry:
%addr = getelementptr inbounds %struct.SmallStruct* %s, i32 0, i32 0
%0 = bitcast i32* %addr to i8*
tail call void @consumestruct(i8* %0, i32 80) optsize
ret void
}
; We can do tail call here since s is in the incoming argument area.
define void @f5(i32 %a, i32 %b, i32 %c, i32 %d, %struct.SmallStruct* nocapture byval %s) nounwind optsize {
; CHECK: f5
; CHECK: b _consumestruct
entry:
%0 = bitcast %struct.SmallStruct* %s to i8*
tail call void @consumestruct(i8* %0, i32 80) optsize
ret void
}
define void @f6(i32 %a, i32 %b, i32 %c, i32 %d, %struct.SmallStruct* nocapture byval %s) nounwind optsize {
; CHECK: f6
; CHECK: b _consumestruct
entry:
%addr = getelementptr inbounds %struct.SmallStruct* %s, i32 0, i32 0
%0 = bitcast i32* %addr to i8*
tail call void @consumestruct(i8* %0, i32 80) optsize
ret void
}
declare void @consumestruct(i8* nocapture %structp, i32 %structsize) nounwind
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