llvm/test/CodeGen/X86/2006-10-19-SwitchUnnecessaryBranching.ll
2009-09-08 23:54:48 +00:00

30 lines
825 B
LLVM

; RUN: llc < %s -march=x86 -asm-verbose | FileCheck %s
@str = internal constant [14 x i8] c"Hello world!\0A\00" ; <[14 x i8]*> [#uses=1]
@str.upgrd.1 = internal constant [13 x i8] c"Blah world!\0A\00" ; <[13 x i8]*> [#uses=1]
define i32 @test(i32 %argc, i8** %argv) nounwind {
entry:
; CHECK: cmpl $2
; CHECK-NEXT: je
; CHECK-NEXT: LBB1_1
switch i32 %argc, label %UnifiedReturnBlock [
i32 1, label %bb
i32 2, label %bb2
]
bb: ; preds = %entry
%tmp1 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([14 x i8]* @str, i32 0, i64 0) ) ; <i32> [#uses=0]
ret i32 0
bb2: ; preds = %entry
%tmp4 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([13 x i8]* @str.upgrd.1, i32 0, i64 0) ) ; <i32> [#uses=0]
ret i32 0
UnifiedReturnBlock: ; preds = %entry
ret i32 0
}
declare i32 @printf(i8*, ...)