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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature
; RUN: opt < %s -passes='require<globals-aa>,gvn' -S | FileCheck %s
; Ensure we do not hoist the load over the call.
@G1 = internal global i32 1
@G2 = internal global i32 1
define i32 @direct_intrinsic(i1 %c) {
; CHECK-LABEL: define {{[^@]+}}@direct_intrinsic
; CHECK-SAME: (i1 [[C:%.*]]) {
; CHECK-NEXT: br i1 [[C]], label [[INIT:%.*]], label [[CHECK:%.*]]
; CHECK: init:
; CHECK-NEXT: store i32 0, ptr @G1, align 4
; CHECK-NEXT: br label [[CHECK]]
; CHECK: check:
; CHECK-NEXT: call void @llvm.unknown()
; CHECK-NEXT: [[V:%.*]] = load i32, ptr @G1, align 4
; CHECK-NEXT: ret i32 [[V]]
;
br i1 %c, label %init, label %check
init:
store i32 0, ptr @G1
br label %check
check:
call void @llvm.unknown()
%v = load i32, ptr @G1
ret i32 %v
}
define i32 @indirect_intrinsic(i1 %c) {
; CHECK-LABEL: define {{[^@]+}}@indirect_intrinsic
; CHECK-SAME: (i1 [[C:%.*]]) {
; CHECK-NEXT: br i1 [[C]], label [[INIT:%.*]], label [[CHECK:%.*]]
; CHECK: init:
; CHECK-NEXT: store i32 0, ptr @G2, align 4
; CHECK-NEXT: br label [[CHECK]]
; CHECK: check:
; CHECK-NEXT: call void @intrinsic_caller()
; CHECK-NEXT: [[V:%.*]] = load i32, ptr @G2, align 4
; CHECK-NEXT: ret i32 [[V]]
;
br i1 %c, label %init, label %check
init:
store i32 0, ptr @G2
br label %check
check:
call void @intrinsic_caller()
%v = load i32, ptr @G2
ret i32 %v
}
define fastcc void @intrinsic_caller() {
; CHECK-LABEL: define {{[^@]+}}@intrinsic_caller() {
; CHECK-NEXT: call void @llvm.unknown()
; CHECK-NEXT: ret void
;
call void @llvm.unknown()
ret void
}
declare void @llvm.unknown()
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