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llvm-mirror/test/CodeGen/SystemZ/bcmp.ll
2020-09-25 17:55:39 +02:00

30 lines
986 B
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
declare signext i32 @bcmp(i8* nocapture, i8* nocapture, i64)
define zeroext i1 @test_bcmp_eq_0(i8* nocapture readonly %A, i8* nocapture readonly %B) {
; CHECK-LABEL: test_bcmp_eq_0:
; CHECK: # %bb.0:
; CHECK-NEXT: clc 0(2,%r3), 0(%r2)
; CHECK-NEXT: ipm %r0
; CHECK-NEXT: afi %r0, -268435456
; CHECK-NEXT: risbg %r2, %r0, 63, 191, 33
; CHECK-NEXT: br %r14
%c = tail call signext i32 @bcmp(i8* %A, i8* %B, i64 2)
%res = icmp eq i32 %c, 0
ret i1 %res
}
define signext i32 @test_bcmp(i8* nocapture readonly %A, i8* nocapture readonly %B) {
; CHECK-LABEL: test_bcmp:
; CHECK: # %bb.0:
; CHECK-NEXT: clc 0(2,%r3), 0(%r2)
; CHECK-NEXT: ipm %r0
; CHECK-NEXT: sllg %r0, %r0, 34
; CHECK-NEXT: srag %r2, %r0, 62
; CHECK-NEXT: br %r14
%res = tail call signext i32 @bcmp(i8* %A, i8* %B, i64 2)
ret i32 %res
}