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llvm-mirror/test/CodeGen/SystemZ/rosbg-02.ll
Matthias Braun aee5f0fc5d Relax fast register allocator related test cases; NFC
- Relex hard coded registers and stack frame sizes
- Some test cleanups
- Change phi-dbg.ll to match on mir output after phi elimination instead
  of going through the whole codegen pipeline.

This is in preparation for https://reviews.llvm.org/D52010
I'm committing all the test changes upfront that work before and after
independently.

llvm-svn: 345532
2018-10-29 20:10:42 +00:00

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701 B
LLVM

; Test that a rosbg conversion involving a sign extend operation rotates with
; the right number of steps.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -O0 | FileCheck %s
@g_136 = external global i16, align 2
@g_999 = external global i32, align 4
; Function Attrs: nounwind
define void @main() {
%1 = load i32, i32* undef, align 4
store i16 -28141, i16* @g_136, align 2
%2 = load i32, i32* undef, align 4
%3 = xor i32 -28141, %2
%4 = xor i32 %1, %3
%5 = sext i32 %4 to i64
%6 = icmp sgt i64 0, %5
%7 = zext i1 %6 to i32
%8 = load i32, i32* @g_999, align 4
%9 = or i32 %8, %7
; CHECK: rosbg {{%r[0-9]+}}, {{%r[0-9]+}}, 63, 63, 33
store i32 %9, i32* @g_999, align 4
ret void
}