forked from OSchip/llvm-project
90 lines
2.4 KiB
LLVM
90 lines
2.4 KiB
LLVM
; Test 16-bit unsigned comparisons between memory and a constant.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
|
|
|
|
; Check a value near 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), 1
|
|
; CHECK-NEXT: jh
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%val = load i16 , i16 *%ptr
|
|
%cond = icmp ugt i16 %val, 1
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check a value near 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), 65534
|
|
; CHECK-NEXT: jl
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%val = load i16 , i16 *%ptr
|
|
%cond = icmp ult i16 %val, 65534
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the high end of the CLHHSI range.
|
|
define double @f3(double %a, double %b, i16 %i1, i16 *%base) {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK: clhhsi 4094(%r3), 1
|
|
; CHECK-NEXT: jh
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i16, i16 *%base, i64 2047
|
|
%val = load i16 , i16 *%ptr
|
|
%cond = icmp ugt i16 %val, 1
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the next halfword up, which needs separate address logic,
|
|
define double @f4(double %a, double %b, i16 *%base) {
|
|
; CHECK-LABEL: f4:
|
|
; CHECK: aghi %r2, 4096
|
|
; CHECK: clhhsi 0(%r2), 1
|
|
; CHECK-NEXT: jh
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i16, i16 *%base, i64 2048
|
|
%val = load i16 , i16 *%ptr
|
|
%cond = icmp ugt i16 %val, 1
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check negative offsets, which also need separate address logic.
|
|
define double @f5(double %a, double %b, i16 *%base) {
|
|
; CHECK-LABEL: f5:
|
|
; CHECK: aghi %r2, -2
|
|
; CHECK: clhhsi 0(%r2), 1
|
|
; CHECK-NEXT: jh
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i16, i16 *%base, i64 -1
|
|
%val = load i16 , i16 *%ptr
|
|
%cond = icmp ugt i16 %val, 1
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check that CLHHSI does not allow indices.
|
|
define double @f6(double %a, double %b, i64 %base, i64 %index) {
|
|
; CHECK-LABEL: f6:
|
|
; CHECK: agr {{%r2, %r3|%r3, %r2}}
|
|
; CHECK: clhhsi 0({{%r[23]}}), 1
|
|
; CHECK-NEXT: jh
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%add = add i64 %base, %index
|
|
%ptr = inttoptr i64 %add to i16 *
|
|
%val = load i16 , i16 *%ptr
|
|
%cond = icmp ugt i16 %val, 1
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|