[llvm-commits] CVS: llvm/test/CodeGen/Generic/2007-05-07-tailmerge-1.c

[Dale Johannesen]

Changes in directory llvm/test/CodeGen/Generic:

2007-05-07-tailmerge-1.c added (r1.1)
---
Log message:

Handle some non-exit blocks in tail merging.


---
Diffs of the changes:  (+65 -0)

 2007-05-07-tailmerge-1.c |   65 +++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 65 insertions(+)


Index: llvm/test/CodeGen/Generic/2007-05-07-tailmerge-1.c
diff -c /dev/null llvm/test/CodeGen/Generic/2007-05-07-tailmerge-1.c:1.1
*** /dev/null	Mon May  7 15:57:31 2007
--- llvm/test/CodeGen/Generic/2007-05-07-tailmerge-1.c	Mon May  7 15:57:21 2007
***************
*** 0 ****
--- 1,65 ----
+ ; RUN: llvm-as < %s | llc -march=arm -enable-tail-merge | grep bl.*baz | wc -l | grep 1
+ ; RUN: llvm-as < %s | llc -march=arm -enable-tail-merge | grep bl.*quux | wc -l | grep 1
+ ; Check that calls to baz and quux are tail-merged.
+ 
+ ; ModuleID = 'tail.c'
+ 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"
+ target triple = "i686-apple-darwin8"
+ 
+ define i32 @f(i32 %i, i32 %q) {
+ entry:
+ 	%i_addr = alloca i32		; <i32*> [#uses=2]
+ 	%q_addr = alloca i32		; <i32*> [#uses=2]
+ 	%retval = alloca i32, align 4		; <i32*> [#uses=1]
+ 	"alloca point" = bitcast i32 0 to i32		; <i32> [#uses=0]
+ 	store i32 %i, i32* %i_addr
+ 	store i32 %q, i32* %q_addr
+ 	%tmp = load i32* %i_addr		; <i32> [#uses=1]
+ 	%tmp1 = icmp ne i32 %tmp, 0		; <i1> [#uses=1]
+ 	%tmp12 = zext i1 %tmp1 to i8		; <i8> [#uses=1]
+ 	%toBool = icmp ne i8 %tmp12, 0		; <i1> [#uses=1]
+ 	br i1 %toBool, label %cond_true, label %cond_false
+ 
+ cond_true:		; preds = %entry
+ 	%tmp3 = call i32 (...)* @bar( )		; <i32> [#uses=0]
+ 	%tmp4 = call i32 (...)* @baz( i32 5, i32 6 )		; <i32> [#uses=0]
+ 	br label %cond_next
+ 
+ cond_false:		; preds = %entry
+ 	%tmp5 = call i32 (...)* @foo( )		; <i32> [#uses=0]
+ 	%tmp6 = call i32 (...)* @baz( i32 5, i32 6 )		; <i32> [#uses=0]
+ 	br label %cond_next
+ 
+ cond_next:		; preds = %cond_false, %cond_true
+ 	%tmp7 = load i32* %q_addr		; <i32> [#uses=1]
+ 	%tmp8 = icmp ne i32 %tmp7, 0		; <i1> [#uses=1]
+ 	%tmp89 = zext i1 %tmp8 to i8		; <i8> [#uses=1]
+ 	%toBool10 = icmp ne i8 %tmp89, 0		; <i1> [#uses=1]
+ 	br i1 %toBool10, label %cond_true11, label %cond_false15
+ 
+ cond_true11:		; preds = %cond_next
+ 	%tmp13 = call i32 (...)* @foo( )		; <i32> [#uses=0]
+ 	%tmp14 = call i32 (...)* @quux( i32 3, i32 4 )		; <i32> [#uses=0]
+ 	br label %cond_next18
+ 
+ cond_false15:		; preds = %cond_next
+ 	%tmp16 = call i32 (...)* @bar( )		; <i32> [#uses=0]
+ 	%tmp17 = call i32 (...)* @quux( i32 3, i32 4 )		; <i32> [#uses=0]
+ 	br label %cond_next18
+ 
+ cond_next18:		; preds = %cond_false15, %cond_true11
+ 	%tmp19 = call i32 (...)* @bar( )		; <i32> [#uses=0]
+ 	br label %return
+ 
+ return:		; preds = %cond_next18
+ 	%retval20 = load i32* %retval		; <i32> [#uses=1]
+ 	ret i32 %retval20
+ }
+ 
+ declare i32 @bar(...)
+ 
+ declare i32 @baz(...)
+ 
+ declare i32 @foo(...)
+ 
+ declare i32 @quux(...)