instcombine: Migrate printf optimizations

This patch migrates the printf optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168604 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 0 insertions, 82 deletions

diff --git a/test/Transforms/SimplifyLibCalls/Printf.ll b/test/Transforms/SimplifyLibCalls/Printf.ll
deleted file mode 100644
index 489c993f21..0000000000
--- a/test/Transforms/SimplifyLibCalls/Printf.ll
+++ /dev/null
@@ -1,37 +0,0 @@
-; RUN: opt < %s -simplify-libcalls -S | FileCheck %s
-
-@str = internal constant [13 x i8] c"hello world\0A\00"         ; <[13 x i8]*> [#uses=1]
-@str1 = internal constant [2 x i8] c"h\00"              ; <[2 x i8]*> [#uses=1]
-
-; CHECK: private unnamed_addr constant [12 x i8] c"hello world\00"
-
-declare i32 @printf(i8*, ...)
-
-; CHECK: define void @f0
-; CHECK-NOT: printf
-; CHECK: }
-define void @f0() {
-entry:
-        %tmp1 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([13 x i8]* @str, i32 0, i32 0) )         ; <i32> [#uses=0]
-        ret void
-}
-
-; CHECK: define void @f1
-; CHECK-NOT: printf
-; CHECK: }
-define void @f1() {
-entry:
-        %tmp1 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([2 x i8]* @str1, i32 0, i32 0) )         ; <i32> [#uses=0]
-        ret void
-}
-
-; Verify that we don't turn this into a putchar call (thus changing the return
-; value).
-;
-; CHECK: define i32 @f2
-; CHECK: printf
-; CHECK: }
-define i32 @f2() {
-  %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([2 x i8]* @str1, i32 0, i32 0))
-  ret i32 %call
-}
diff --git a/test/Transforms/SimplifyLibCalls/debug-line.ll b/test/Transforms/SimplifyLibCalls/debug-line.ll
deleted file mode 100644
index b668e4b9d3..0000000000
--- a/test/Transforms/SimplifyLibCalls/debug-line.ll
+++ /dev/null
@@ -1,24 +0,0 @@
-; RUN: opt -simplify-libcalls -S < %s | FileCheck %s
-
-
-@.str = private constant [3 x i8] c"%c\00"
-
-define void @foo() nounwind ssp {
-;CHECK: call i32 @putchar{{.+}} !dbg
-  %1 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([3 x i8]* @.str, i32 0, i32 0), i32 97), !dbg !5
-  ret void, !dbg !7
-}
-
-declare i32 @printf(i8*, ...)
-
-!llvm.dbg.sp = !{!0}
-
-!0 = metadata !{i32 589870, i32 0, metadata !1, metadata !"foo", metadata !"foo", metadata !"", metadata !1, i32 4, metadata !3, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 false, void ()* @foo} ; [ DW_TAG_subprogram ]
-!1 = metadata !{i32 589865, metadata !"m.c", metadata !"/private/tmp", metadata !2} ; [ DW_TAG_file_type ]
-!2 = metadata !{i32 589841, i32 0, i32 12, metadata !"m.c", metadata !"/private/tmp", metadata !"clang", i1 true, i1 false, metadata !"", i32 0} ; [ DW_TAG_compile_unit ]
-!3 = metadata !{i32 589845, metadata !1, metadata !"", metadata !1, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !4, i32 0, null} ; [ DW_TAG_subroutine_type ]
-!4 = metadata !{null}
-!5 = metadata !{i32 5, i32 2, metadata !6, null}
-!6 = metadata !{i32 589835, metadata !0, i32 4, i32 12, metadata !1, i32 0} ; [ DW_TAG_lexical_block ]
-!7 = metadata !{i32 6, i32 1, metadata !6, null}
-
diff --git a/test/Transforms/SimplifyLibCalls/iprintf.ll b/test/Transforms/SimplifyLibCalls/iprintf.ll
index 7f036fe3ab..d6a7074db1 100644
--- a/test/Transforms/SimplifyLibCalls/iprintf.ll
+++ b/test/Transforms/SimplifyLibCalls/iprintf.ll
@@ -6,26 +6,6 @@ target triple = "xcore-xmos-elf"
 @.str = internal constant [4 x i8] c"%f\0A\00"		; <[4 x i8]*> [#uses=1]
 @.str1 = internal constant [4 x i8] c"%d\0A\00"		; <[4 x i8]*> [#uses=1]
 
-; Verify printf with no floating point arguments is transformed to iprintf
-define i32 @f0(i32 %x) nounwind {
-entry:
-; CHECK: define i32 @f0
-; CHECK: @iprintf
-; CHECK: }
-	%0 = tail call i32 (i8*, ...)* @printf(i8* getelementptr ([4 x i8]* @.str1, i32 0, i32 0), i32 %x)		; <i32> [#uses=0]
-	ret i32 %0
-}
-
-; Verify we don't turn this into an iprintf call
-define void @f1(double %x) nounwind {
-entry:
-; CHECK: define void @f1
-; CHECK: @printf
-; CHECK: }
-	%0 = tail call i32 (i8*, ...)* @printf(i8* getelementptr ([4 x i8]* @.str, i32 0, i32 0), double %x) nounwind		; <i32> [#uses=0]
-	ret void
-}
-
 ; Verify sprintf with no floating point arguments is transformed to siprintf
 define i32 @f2(i8* %p, i32 %x) nounwind {
 entry:
@@ -66,6 +46,5 @@ entry:
 	ret i32 %0
 }
 
-declare i32 @printf(i8* nocapture, ...) nounwind
 declare i32 @sprintf(i8* nocapture, i8* nocapture, ...) nounwind
 declare i32 @fprintf(i8* nocapture, i8* nocapture, ...) nounwind