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| ; RUN: opt -S -newgvn %s | FileCheck %s
; CHECK: define void @tinkywinky() {
; CHECK-NEXT: entry:
; CHECK-NEXT: %d = alloca i32, align 4
; CHECK-NEXT: store i32 0, i32* null, align 4
; CHECK-NEXT: br label %for.cond
; CHECK: for.cond: ; preds = %if.end, %entry
; CHECK-NEXT: %0 = load i32, i32* null, align 4
; CHECK-NEXT: %cmp = icmp slt i32 %0, 1
; CHECK-NEXT: br i1 %cmp, label %for.body, label %while.cond
; CHECK: for.body: ; preds = %for.cond
; CHECK-NEXT: %1 = load i32, i32* @a, align 4
; CHECK-NEXT: store i32 %1, i32* %d, align 4
; CHECK-NEXT: br label %L
; CHECK: L: ; preds = %if.then, %for.body
; CHECK-NEXT: %tobool = icmp ne i32 %1, 0
; CHECK-NEXT: br i1 %tobool, label %if.then, label %if.end
; CHECK: if.then: ; preds = %L
; CHECK-NEXT: call void (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @patatino, i32 0, i32 0))
; CHECK-NEXT: br label %L
; CHECK: if.end: ; preds = %L
; CHECK-NEXT: br label %for.cond
; CHECK: while.cond: ; preds = %while.body, %for.cond
; CHECK-NEXT: br i1 undef, label %while.body, label %while.end
; CHECK: while.body: ; preds = %while.cond
; CHECK-NEXT: call void (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @patatino, i32 0, i32 0))
; CHECK-NEXT: br label %while.cond
; CHECK: while.end:
; CHECK-NEXT: %2 = load i32, i32* @a, align 4
; CHECK-NEXT: store i32 %2, i32* undef, align 4
; CHECK-NEXT: ret void
@a = external global i32, align 4
@patatino = external unnamed_addr constant [2 x i8], align 1
define void @tinkywinky() {
entry:
%d = alloca i32, align 4
store i32 0, i32* null, align 4
br label %for.cond
for.cond:
%0 = load i32, i32* null, align 4
%cmp = icmp slt i32 %0, 1
br i1 %cmp, label %for.body, label %while.cond
for.body:
%1 = load i32, i32* @a, align 4
store i32 %1, i32* %d, align 4
br label %L
L:
%2 = load i32, i32* %d, align 4
%tobool = icmp ne i32 %2, 0
br i1 %tobool, label %if.then, label %if.end
if.then:
call void (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @patatino, i32 0, i32 0))
br label %L
if.end:
br label %for.cond
while.cond:
br i1 undef, label %while.body, label %while.end
while.body:
call void (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @patatino, i32 0, i32 0))
br label %while.cond
while.end:
%3 = load i32, i32* @a, align 4
store i32 %3, i32* undef, align 4
ret void
}
declare void @printf(i8*, ...) #1
|