mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 11:42:57 +01:00
80d5f68422
Return is now considered a predicable instruction, and is converted to a newly-added CondReturn (which maps to BCR to %r14) instruction by the if conversion pass. Also, fused compare-and-branch transform knows about conditional returns, emitting the proper fused instructions for them. This transform triggers on a *lot* of tests, hence the huge diffstat. The changes are mostly jX to br %r14 -> bXr %r14. Author: koriakin Differential Revision: http://reviews.llvm.org/D17339 llvm-svn: 265689
56 lines
1.5 KiB
LLVM
56 lines
1.5 KiB
LLVM
; Test 16-bit inequality comparisons between memory and a constant.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
|
|
|
|
; Check the low end of the unsigned 16-bit range.
|
|
define double @f1(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK: clhhsi 0(%r2), 0
|
|
; CHECK-NEXT: blhr %r14
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%val = load i16 , i16 *%ptr
|
|
%cond = icmp ne i16 %val, 0
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the high end of the unsigned 16-bit range.
|
|
define double @f2(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: clhhsi 0(%r2), 65535
|
|
; CHECK-NEXT: blhr %r14
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%val = load i16 , i16 *%ptr
|
|
%cond = icmp ne i16 %val, 65535
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the low end of the signed 16-bit range.
|
|
define double @f3(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK: clhhsi 0(%r2), 32768
|
|
; CHECK-NEXT: blhr %r14
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%val = load i16 , i16 *%ptr
|
|
%cond = icmp ne i16 %val, -32768
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the high end of the signed 16-bit range.
|
|
define double @f4(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f4:
|
|
; CHECK: clhhsi 0(%r2), 32767
|
|
; CHECK-NEXT: blhr %r14
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%val = load i16 , i16 *%ptr
|
|
%cond = icmp ne i16 %val, 32767
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|