control-flow2.ll
1.44 KB
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --scrub-attributes
; RUN: opt -S -passes='attributor' -aa-pipeline='basic-aa' -attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=9 < %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"
define internal i32 @callee(i1 %C, i32* %P) {
; CHECK-LABEL: define {{[^@]+}}@callee
; CHECK-SAME: (i1 [[C:%.*]], i32* noalias nocapture nofree nonnull readonly align 4 dereferenceable(4) [[P:%.*]])
; CHECK-NEXT: br label [[F:%.*]]
; CHECK: T:
; CHECK-NEXT: unreachable
; CHECK: F:
; CHECK-NEXT: [[X:%.*]] = load i32, i32* [[P]], align 4
; CHECK-NEXT: ret i32 [[X]]
;
br i1 %C, label %T, label %F
T: ; preds = %0
ret i32 17
F: ; preds = %0
%X = load i32, i32* %P ; <i32> [#uses=1]
ret i32 %X
}
define i32 @foo() {
; CHECK-LABEL: define {{[^@]+}}@foo()
; CHECK-NEXT: [[A:%.*]] = alloca i32
; CHECK-NEXT: store i32 17, i32* [[A]], align 4
; CHECK-NEXT: [[X:%.*]] = call i32 @callee(i1 false, i32* noalias nocapture nofree nonnull readonly align 4 dereferenceable(4) [[A]])
; CHECK-NEXT: ret i32 [[X]]
;
%A = alloca i32 ; <i32*> [#uses=2]
store i32 17, i32* %A
%X = call i32 @callee( i1 false, i32* %A ) ; <i32> [#uses=1]
ret i32 %X
}