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35 lines
1.6 KiB
LLVM
35 lines
1.6 KiB
LLVM
; RUN: llc < %s
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@a_str = internal constant [8 x i8] c"a = %d\0A\00" ; <[8 x i8]*> [#uses=1]
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@b_str = internal constant [8 x i8] c"b = %d\0A\00" ; <[8 x i8]*> [#uses=1]
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@a_shl_str = internal constant [14 x i8] c"a << %d = %d\0A\00" ; <[14 x i8]*> [#uses=1]
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@A = global i32 2 ; <i32*> [#uses=1]
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@B = global i32 5 ; <i32*> [#uses=1]
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declare i32 @printf(i8*, ...)
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define i32 @main() {
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entry:
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%a = load i32* @A ; <i32> [#uses=2]
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%b = load i32* @B ; <i32> [#uses=1]
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%a_s = getelementptr [8 x i8]* @a_str, i64 0, i64 0 ; <i8*> [#uses=1]
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%b_s = getelementptr [8 x i8]* @b_str, i64 0, i64 0 ; <i8*> [#uses=1]
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%a_shl_s = getelementptr [14 x i8]* @a_shl_str, i64 0, i64 0 ; <i8*> [#uses=1]
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call i32 (i8*, ...)* @printf( i8* %a_s, i32 %a ) ; <i32>:0 [#uses=0]
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call i32 (i8*, ...)* @printf( i8* %b_s, i32 %b ) ; <i32>:1 [#uses=0]
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br label %shl_test
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shl_test: ; preds = %shl_test, %entry
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%s = phi i8 [ 0, %entry ], [ %s_inc, %shl_test ] ; <i8> [#uses=4]
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%shift.upgrd.1 = zext i8 %s to i32 ; <i32> [#uses=1]
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%result = shl i32 %a, %shift.upgrd.1 ; <i32> [#uses=1]
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call i32 (i8*, ...)* @printf( i8* %a_shl_s, i8 %s, i32 %result ) ; <i32>:2 [#uses=0]
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%s_inc = add i8 %s, 1 ; <i8> [#uses=1]
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%done = icmp eq i8 %s, 32 ; <i1> [#uses=1]
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br i1 %done, label %fini, label %shl_test
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fini: ; preds = %shl_test
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ret i32 0
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}
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