heap-sra-1.ll
1.39 KB
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; RUN: opt < %s -globalopt -S | FileCheck %s
target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
%struct.foo = type { i32, i32 }
@X = internal global %struct.foo* null
; CHECK: @X.f0
; CHECK: @X.f1
define void @bar(i64 %Size) nounwind noinline {
entry:
%mallocsize = mul i64 %Size, 8 ; <i64> [#uses=1]
%malloccall = tail call i8* @malloc(i64 %mallocsize) ; <i8*> [#uses=1]
%.sub = bitcast i8* %malloccall to %struct.foo* ; <%struct.foo*> [#uses=1]
store %struct.foo* %.sub, %struct.foo** @X, align 4
ret void
}
declare noalias i8* @malloc(i64)
define i32 @baz() nounwind readonly noinline {
bb1.thread:
%0 = load %struct.foo*, %struct.foo** @X, align 4
br label %bb1
bb1: ; preds = %bb1, %bb1.thread
%i.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %indvar.next, %bb1 ]
%sum.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %3, %bb1 ]
%1 = getelementptr %struct.foo, %struct.foo* %0, i32 %i.0.reg2mem.0, i32 0
%2 = load i32, i32* %1, align 4
%3 = add i32 %2, %sum.0.reg2mem.0
%indvar.next = add i32 %i.0.reg2mem.0, 1
%exitcond = icmp eq i32 %indvar.next, 1200
br i1 %exitcond, label %bb2, label %bb1
bb2: ; preds = %bb1
ret i32 %3
}
define void @bam(i64 %Size) nounwind noinline #0 {
entry:
%0 = load %struct.foo*, %struct.foo** @X, align 4
ret void
}
attributes #0 = { null_pointer_is_valid }