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Extend 'readonly' and 'readnone' to work on function arguments as well as

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functions. Make the function attributes pass add it to known library functions
and when it can deduce it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185735 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky
2013-07-06 00:29:58 +00:00
parent 202eb7b18e
commit dc89737bcd
22 changed files with 547 additions and 86 deletions
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test/Transforms/InstCombine/strto-1.ll
+7 -7
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@@ -5,25 +5,25 @@
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
declare i64 @strtol(i8* %s, i8** %endptr, i32 %base)
; CHECK: declare i64 @strtol(i8*, i8** nocapture, i32)
; CHECK: declare i64 @strtol(i8* readonly, i8** nocapture, i32)
declare double @strtod(i8* %s, i8** %endptr, i32 %base)
; CHECK: declare double @strtod(i8*, i8** nocapture, i32)
; CHECK: declare double @strtod(i8* readonly, i8** nocapture, i32)
declare float @strtof(i8* %s, i8** %endptr, i32 %base)
; CHECK: declare float @strtof(i8*, i8** nocapture, i32)
; CHECK: declare float @strtof(i8* readonly, i8** nocapture, i32)
declare i64 @strtoul(i8* %s, i8** %endptr, i32 %base)
; CHECK: declare i64 @strtoul(i8*, i8** nocapture, i32)
; CHECK: declare i64 @strtoul(i8* readonly, i8** nocapture, i32)
declare i64 @strtoll(i8* %s, i8** %endptr, i32 %base)
; CHECK: declare i64 @strtoll(i8*, i8** nocapture, i32)
; CHECK: declare i64 @strtoll(i8* readonly, i8** nocapture, i32)
declare double @strtold(i8* %s, i8** %endptr)
; CHECK: declare double @strtold(i8*, i8** nocapture)
; CHECK: declare double @strtold(i8* readonly, i8** nocapture)
declare i64 @strtoull(i8* %s, i8** %endptr, i32 %base)
; CHECK: declare i64 @strtoull(i8*, i8** nocapture, i32)
; CHECK: declare i64 @strtoull(i8* readonly, i8** nocapture, i32)
define void @test_simplify1(i8* %x, i8** %endptr) {
; CHECK: @test_simplify1