You've already forked linux-packaging-mono
226 lines
6.6 KiB
LLVM
226 lines
6.6 KiB
LLVM
; Test 32-bit ordered comparisons that are really between a memory halfword
|
|
; and a constant.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
|
|
|
|
; Check unsigned comparison near the low end of the CLHHSI range, using zero
|
|
; extension.
|
|
define double @f1(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK: clhhsi 0(%r2), 1
|
|
; CHECK-NEXT: bhr %r14
|
|
; CHECK: br %r14
|
|
%val = load i16 , i16 *%ptr
|
|
%ext = zext i16 %val to i32
|
|
%cond = icmp ugt i32 %ext, 1
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check unsigned comparison near the low end of the CLHHSI range, using sign
|
|
; extension.
|
|
define double @f2(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: clhhsi 0(%r2), 1
|
|
; CHECK-NEXT: bhr %r14
|
|
; CHECK: br %r14
|
|
%val = load i16 , i16 *%ptr
|
|
%ext = sext i16 %val to i32
|
|
%cond = icmp ugt i32 %ext, 1
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check unsigned comparison near the high end of the CLHHSI range, using zero
|
|
; extension.
|
|
define double @f3(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK: clhhsi 0(%r2), 65534
|
|
; CHECK-NEXT: blr %r14
|
|
; CHECK: br %r14
|
|
%val = load i16 , i16 *%ptr
|
|
%ext = zext i16 %val to i32
|
|
%cond = icmp ult i32 %ext, 65534
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check unsigned comparison near the high end of the CLHHSI range, using sign
|
|
; extension.
|
|
define double @f4(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f4:
|
|
; CHECK: clhhsi 0(%r2), 65534
|
|
; CHECK-NEXT: blr %r14
|
|
; CHECK: br %r14
|
|
%val = load i16 , i16 *%ptr
|
|
%ext = sext i16 %val to i32
|
|
%cond = icmp ult i32 %ext, -2
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check unsigned comparison above the high end of the CLHHSI range, using zero
|
|
; extension. The condition is always true.
|
|
define double @f5(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f5:
|
|
; CHECK-NOT: clhhsi
|
|
; CHECK: br %r14
|
|
%val = load i16 , i16 *%ptr
|
|
%ext = zext i16 %val to i32
|
|
%cond = icmp ult i32 %ext, 65536
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; When using unsigned comparison with sign extension, equality with values
|
|
; in the range [32768, MAX-32769] is impossible, and ordered comparisons with
|
|
; those values are effectively sign tests. Since such comparisons are
|
|
; unlikely to occur in practice, we don't bother optimizing the second case,
|
|
; and simply ignore CLHHSI for this range. First check the low end of the
|
|
; range.
|
|
define double @f6(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f6:
|
|
; CHECK-NOT: clhhsi
|
|
; CHECK: br %r14
|
|
%val = load i16 , i16 *%ptr
|
|
%ext = sext i16 %val to i32
|
|
%cond = icmp ult i32 %ext, 32768
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; ...and then the high end.
|
|
define double @f7(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f7:
|
|
; CHECK-NOT: clhhsi
|
|
; CHECK: br %r14
|
|
%val = load i16 , i16 *%ptr
|
|
%ext = sext i16 %val to i32
|
|
%cond = icmp ult i32 %ext, -32769
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check signed comparison near the low end of the CLHHSI range, using zero
|
|
; extension. This is equivalent to unsigned comparison.
|
|
define double @f8(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f8:
|
|
; CHECK: clhhsi 0(%r2), 1
|
|
; CHECK-NEXT: bhr %r14
|
|
; CHECK: br %r14
|
|
%val = load i16 , i16 *%ptr
|
|
%ext = zext i16 %val to i32
|
|
%cond = icmp sgt i32 %ext, 1
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check signed comparison near the low end of the CLHHSI range, using sign
|
|
; extension. This should use CHHSI instead.
|
|
define double @f9(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f9:
|
|
; CHECK: chhsi 0(%r2), 1
|
|
; CHECK-NEXT: bhr %r14
|
|
; CHECK: br %r14
|
|
%val = load i16 , i16 *%ptr
|
|
%ext = sext i16 %val to i32
|
|
%cond = icmp sgt i32 %ext, 1
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check signed comparison near the high end of the CLHHSI range, using zero
|
|
; extension. This is equivalent to unsigned comparison.
|
|
define double @f10(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f10:
|
|
; CHECK: clhhsi 0(%r2), 65534
|
|
; CHECK-NEXT: blr %r14
|
|
; CHECK: br %r14
|
|
%val = load i16 , i16 *%ptr
|
|
%ext = zext i16 %val to i32
|
|
%cond = icmp slt i32 %ext, 65534
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check signed comparison near the high end of the CLHHSI range, using sign
|
|
; extension. This should use CHHSI instead.
|
|
define double @f11(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f11:
|
|
; CHECK: chhsi 0(%r2), -2
|
|
; CHECK-NEXT: blr %r14
|
|
; CHECK: br %r14
|
|
%val = load i16 , i16 *%ptr
|
|
%ext = sext i16 %val to i32
|
|
%cond = icmp slt i32 %ext, -2
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check signed comparison above the high end of the CLHHSI range, using zero
|
|
; extension. The condition is always true.
|
|
define double @f12(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f12:
|
|
; CHECK-NOT: cli
|
|
; CHECK: br %r14
|
|
%val = load i16 , i16 *%ptr
|
|
%ext = zext i16 %val to i32
|
|
%cond = icmp slt i32 %ext, 65536
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check signed comparison near the high end of the CHHSI range, using sign
|
|
; extension.
|
|
define double @f13(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f13:
|
|
; CHECK: chhsi 0(%r2), 32766
|
|
; CHECK-NEXT: blr %r14
|
|
; CHECK: br %r14
|
|
%val = load i16 , i16 *%ptr
|
|
%ext = sext i16 %val to i32
|
|
%cond = icmp slt i32 %ext, 32766
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check signed comparison above the high end of the CHHSI range, using sign
|
|
; extension. This condition is always true.
|
|
define double @f14(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f14:
|
|
; CHECK-NOT: chhsi
|
|
; CHECK: br %r14
|
|
%val = load i16 , i16 *%ptr
|
|
%ext = sext i16 %val to i32
|
|
%cond = icmp slt i32 %ext, 32768
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check signed comparison near the low end of the CHHSI range, using sign
|
|
; extension.
|
|
define double @f15(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f15:
|
|
; CHECK: chhsi 0(%r2), -32767
|
|
; CHECK-NEXT: bhr %r14
|
|
; CHECK: br %r14
|
|
%val = load i16 , i16 *%ptr
|
|
%ext = sext i16 %val to i32
|
|
%cond = icmp sgt i32 %ext, -32767
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check signed comparison below the low end of the CHHSI range, using sign
|
|
; extension. This condition is always true.
|
|
define double @f16(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f16:
|
|
; CHECK-NOT: chhsi
|
|
; CHECK: br %r14
|
|
%val = load i16 , i16 *%ptr
|
|
%ext = sext i16 %val to i32
|
|
%cond = icmp sgt i32 %ext, -32769
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|