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Ding dong, the DoesntAccessMemoryFns and

Browse Source 
OnlyReadsMemoryFns tables are dead!  We
get more, and more accurate, information
from gcc via the readnone and readonly
function attributes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44288 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan Sands
2007-11-23 19:30:27 +00:00
parent bb65098d2c
commit e4dc717585
8 changed files with 83 additions and 193 deletions
Download Patch File Download Diff File Expand all files Collapse all files
test/Transforms/LoopRotate/pr1154.ll
+24 -25
View File
@@ -1,13 +1,12 @@
; RUN: llvm-upgrade < %s | llvm-as | opt -std-compile-opts | llvm-dis | \
; RUN: llvm-as < %s | opt -std-compile-opts | llvm-dis | \
; RUN: %prcontext strstr 2 | grep -v declare | grep bb36.outer:
; END.
@str = internal constant [68 x i8] c"Dot. date. datum. 123. Some more doubtful demonstration dummy data.\00" ; <[68 x i8]*> [#uses=1]
@str1 = internal constant [5 x i8] c"ummy\00" ; <[5 x i8]*> [#uses=1]
@str2 = internal constant [6 x i8] c" data\00" ; <[6 x i8]*> [#uses=1]
@str3 = internal constant [3 x i8] c"by\00" ; <[3 x i8]*> [#uses=1]
i32 @stringSearch_Clib(i32 %count) {
define i32 @stringSearch_Clib(i32 %count) {
entry:
%count_addr = alloca i32 ; <i32*> [#uses=2]
%retval = alloca i32, align 4 ; <i32*> [#uses=2]
@@ -17,11 +16,11 @@ entry:
%j = alloca i32, align 4 ; <i32*> [#uses=4]
%p = alloca i8*, align 4 ; <i8**> [#uses=6]
%b = alloca [68 x i8], align 16 ; <[68 x i8]*> [#uses=6]
"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store i32 %count, i32* %count_addr
store i32 0, i32* %c
%b1 = bitcast [68 x i8]* %b to i8* ; <i8*> [#uses=1]
%tmp2 = getelementptr [68 x i8]* @str, i32 0, i32 0 ; <i8*> [#uses=1]
%tmp2 = getelementptr [68 x i8]* @str, i64 0, i64 0 ; <i8*> [#uses=1]
call void @llvm.memcpy.i32( i8* %b1, i8* %tmp2, i32 68, i32 1 )
store i32 0, i32* %j
br label %bb41
@@ -34,13 +33,13 @@ bb: ; preds = %bb41
bb4: ; preds = %bb36
%b5 = bitcast [68 x i8]* %b to i8* ; <i8*> [#uses=1]
%tmp6 = getelementptr [5 x i8]* @str1, i32 0, i32 0 ; <i8*> [#uses=1]
%tmp7 = call i8* @strstr( i8* %b5, i8* %tmp6 ) ; <i8*> [#uses=1]
%tmp6 = getelementptr [5 x i8]* @str1, i64 0, i64 0 ; <i8*> [#uses=1]
%tmp7 = call i8* @strstr( i8* %b5, i8* %tmp6 ) readonly ; <i8*> [#uses=1]
store i8* %tmp7, i8** %p
%tmp8 = load i8** %p ; <i8*> [#uses=1]
%ttmp8 = icmp ne i8* %tmp8, null ; <i1>:0 [#uses=1]
%ttmp10 = zext i1 %ttmp8 to i8 ; <i8>:1 [#uses=1]
%ttmp7 = icmp ne i8 %ttmp10, 0 ; <i1>:2 [#uses=1]
%ttmp8 = icmp ne i8* %tmp8, null ; <i1> [#uses=1]
%ttmp10 = zext i1 %ttmp8 to i8 ; <i8> [#uses=1]
%ttmp7 = icmp ne i8 %ttmp10, 0 ; <i1> [#uses=1]
br i1 %ttmp7, label %cond_true, label %cond_next
cond_true: ; preds = %bb4
@@ -56,13 +55,13 @@ cond_true: ; preds = %bb4
cond_next: ; preds = %cond_true, %bb4
%b16 = bitcast [68 x i8]* %b to i8* ; <i8*> [#uses=1]
%tmp17 = getelementptr [6 x i8]* @str2, i32 0, i32 0 ; <i8*> [#uses=1]
%tmp18 = call i8* @strstr( i8* %b16, i8* %tmp17 ) ; <i8*> [#uses=1]
%tmp17 = getelementptr [6 x i8]* @str2, i64 0, i64 0 ; <i8*> [#uses=1]
%tmp18 = call i8* @strstr( i8* %b16, i8* %tmp17 ) readonly ; <i8*> [#uses=1]
store i8* %tmp18, i8** %p
%tmp19 = load i8** %p ; <i8*> [#uses=1]
%ttmp6 = icmp ne i8* %tmp19, null ; <i1>:3 [#uses=1]
%ttmp9 = zext i1 %ttmp6 to i8 ; <i8>:4 [#uses=1]
%ttmp4 = icmp ne i8 %ttmp9, 0 ; <i1>:5 [#uses=1]
%ttmp6 = icmp ne i8* %tmp19, null ; <i1> [#uses=1]
%ttmp9 = zext i1 %ttmp6 to i8 ; <i8> [#uses=1]
%ttmp4 = icmp ne i8 %ttmp9, 0 ; <i1> [#uses=1]
br i1 %ttmp4, label %cond_true20, label %cond_next28
cond_true20: ; preds = %cond_next
@@ -78,8 +77,8 @@ cond_true20: ; preds = %cond_next
cond_next28: ; preds = %cond_true20, %cond_next
%b29 = bitcast [68 x i8]* %b to i8* ; <i8*> [#uses=1]
%tmp30 = getelementptr [3 x i8]* @str3, i32 0, i32 0 ; <i8*> [#uses=1]
%tmp31 = call i32 @strcspn( i8* %b29, i8* %tmp30 ) ; <i32> [#uses=1]
%tmp30 = getelementptr [3 x i8]* @str3, i64 0, i64 0 ; <i8*> [#uses=1]
%tmp31 = call i32 @strcspn( i8* %b29, i8* %tmp30 ) readonly ; <i32> [#uses=1]
%tmp32 = load i32* %c ; <i32> [#uses=1]
%tmp33 = add i32 %tmp31, %tmp32 ; <i32> [#uses=1]
store i32 %tmp33, i32* %c
@@ -90,9 +89,9 @@ cond_next28: ; preds = %cond_true20, %cond_next
bb36: ; preds = %cond_next28, %bb
%tmp37 = load i32* %i ; <i32> [#uses=1]
%ttmp3= icmp sle i32 %tmp37, 249 ; <i1>:6 [#uses=1]
%ttmp12 = zext i1 %ttmp3 to i8 ; <i8>:7 [#uses=1]
%ttmp1 = icmp ne i8 %ttmp12, 0 ; <i1>:8 [#uses=1]
%ttmp3 = icmp sle i32 %tmp37, 249 ; <i1> [#uses=1]
%ttmp12 = zext i1 %ttmp3 to i8 ; <i8> [#uses=1]
%ttmp1 = icmp ne i8 %ttmp12, 0 ; <i1> [#uses=1]
br i1 %ttmp1, label %bb4, label %bb38
bb38: ; preds = %bb36
@@ -104,9 +103,9 @@ bb38: ; preds = %bb36
bb41: ; preds = %bb38, %entry
%tmp42 = load i32* %j ; <i32> [#uses=1]
%tmp43 = load i32* %count_addr ; <i32> [#uses=1]
%ttmp2 = icmp slt i32 %tmp42, %tmp43 ; <i1>:9 [#uses=1]
%ttmp11 = zext i1 %ttmp2 to i8 ; <i8>:10 [#uses=1]
%ttmp5 = icmp ne i8 %ttmp11, 0 ; <i1>:11 [#uses=1]
%ttmp2 = icmp slt i32 %tmp42, %tmp43 ; <i1> [#uses=1]
%ttmp11 = zext i1 %ttmp2 to i8 ; <i8> [#uses=1]
%ttmp5 = icmp ne i8 %ttmp11, 0 ; <i1> [#uses=1]
br i1 %ttmp5, label %bb, label %bb44
bb44: ; preds = %bb41
@@ -123,6 +122,6 @@ return: ; preds = %bb44
declare void @llvm.memcpy.i32(i8*, i8*, i32, i32)
declare i8* @strstr(i8*, i8*)
declare i8* @strstr(i8*, i8*) readonly
declare i32 @strcspn(i8*, i8*)
declare i32 @strcspn(i8*, i8*) readonly