mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-08 18:30:04 +00:00
64aa9d8b4c
This hooks up the TargetTransformInfo machinery for SystemZ, and provides an implementation of getIntImmCost. In addition, the patch adds the isLegalICmpImmediate and isLegalAddImmediate TargetLowering overrides, and updates a couple of test cases where we now generate slightly better code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233688 91177308-0d34-0410-b5e6-96231b3b80d8
73 lines
2.0 KiB
LLVM
73 lines
2.0 KiB
LLVM
; Test 64-bit unsigned comparisons in which the second operand is constant.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
|
|
|
|
; Check a value near the low end of the range. We use signed forms for
|
|
; comparisons with zero, or things that are equivalent to them.
|
|
define double @f1(double %a, double %b, i64 %i1) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK: clgijh %r2, 1
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%cond = icmp ugt i64 %i1, 1
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the top of the CLGIJ range.
|
|
define double @f2(double %a, double %b, i64 %i1) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: clgijl %r2, 255
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%cond = icmp ult i64 %i1, 255
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the next value up, which needs a separate comparison.
|
|
define double @f3(double %a, double %b, i64 %i1) {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK: clgfi %r2, 256
|
|
; CHECK: jl
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%cond = icmp ult i64 %i1, 256
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the high end of the CLGFI range.
|
|
define double @f4(double %a, double %b, i64 %i1) {
|
|
; CHECK-LABEL: f4:
|
|
; CHECK: clgfi %r2, 4294967295
|
|
; CHECK-NEXT: jl
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%cond = icmp ult i64 %i1, 4294967295
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the next value up, which can use a shifted comparison
|
|
define double @f5(double %a, double %b, i64 %i1) {
|
|
; CHECK-LABEL: f5:
|
|
; CHECK: srlg [[REG:%r[0-5]]], %r2, 32
|
|
; CHECK: cgije [[REG]], 0
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%cond = icmp ult i64 %i1, 4294967296
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
; Check the next value up, which must use a register comparison.
|
|
define double @f6(double %a, double %b, i64 %i1) {
|
|
; CHECK-LABEL: f6:
|
|
; CHECK: clgrjl %r2,
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%cond = icmp ult i64 %i1, 4294967297
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|