mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 12:12:47 +01:00
31 lines
882 B
LLVM
31 lines
882 B
LLVM
; RUN: llc -mtriple=x86_64-unknown-linux-gnu -o - -global-isel < %s 2>&1 | FileCheck %s
|
|
; REQUIRES: asserts
|
|
; XFAIL: *
|
|
|
|
define i32 @test_01(i32* %p, i64 %len, i32 %x) {
|
|
; CHECK-LABEL: test_01
|
|
|
|
entry:
|
|
%scevgep = getelementptr i32, i32* %p, i64 -1
|
|
br label %loop
|
|
|
|
loop: ; preds = %backedge, %entry
|
|
%iv = phi i64 [ %iv.next, %backedge ], [ %len, %entry ]
|
|
%iv.next = add i64 %iv, -1
|
|
%cond_1 = icmp eq i64 %iv, 0
|
|
br i1 %cond_1, label %exit, label %backedge
|
|
|
|
backedge: ; preds = %loop
|
|
%scevgep1 = getelementptr i32, i32* %scevgep, i64 %iv
|
|
%loaded = load atomic i32, i32* %scevgep1 unordered, align 4
|
|
%cond_2 = icmp eq i32 %loaded, %x
|
|
br i1 %cond_2, label %failure, label %loop
|
|
|
|
exit: ; preds = %loop
|
|
ret i32 -1
|
|
|
|
failure:
|
|
unreachable
|
|
}
|
|
|