mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 04:02:41 +01:00
221 lines
6.1 KiB
LLVM
221 lines
6.1 KiB
LLVM
; Test 32-bit ordered comparisons that are really between a memory byte
|
|
; and a constant.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
|
|
|
|
; Check unsigned comparison near the low end of the CLI range, using zero
|
|
; extension.
|
|
define double @f1(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK: cli 0(%r2), 1
|
|
; CHECK-NEXT: bhr %r14
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = zext i8 %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 CLI range, using sign
|
|
; extension.
|
|
define double @f2(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: cli 0(%r2), 1
|
|
; CHECK-NEXT: bhr %r14
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = sext i8 %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 CLI range, using zero
|
|
; extension.
|
|
define double @f3(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK: cli 0(%r2), 254
|
|
; CHECK-NEXT: blr %r14
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = zext i8 %val to i32
|
|
%cond = icmp ult i32 %ext, 254
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check unsigned comparison near the high end of the CLI range, using sign
|
|
; extension.
|
|
define double @f4(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f4:
|
|
; CHECK: cli 0(%r2), 254
|
|
; CHECK-NEXT: blr %r14
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = sext i8 %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 CLI range, using zero
|
|
; extension. The condition is always true.
|
|
define double @f5(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f5:
|
|
; CHECK-NOT: cli {{.*}}
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = zext i8 %val to i32
|
|
%cond = icmp ult i32 %ext, 256
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; When using unsigned comparison with sign extension, equality with values
|
|
; in the range [128, MAX-129] 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 CLI for this range. First check the low end of the range.
|
|
define double @f6(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f6:
|
|
; CHECK-NOT: cli {{.*}}
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = sext i8 %val to i32
|
|
%cond = icmp ult i32 %ext, 128
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; ...and then the high end.
|
|
define double @f7(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f7:
|
|
; CHECK-NOT: cli {{.*}}
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = sext i8 %val to i32
|
|
%cond = icmp ult i32 %ext, -129
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check signed comparison near the low end of the CLI range, using zero
|
|
; extension. This is equivalent to unsigned comparison.
|
|
define double @f8(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f8:
|
|
; CHECK: cli 0(%r2), 1
|
|
; CHECK-NEXT: bhr %r14
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = zext i8 %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 CLI range, using sign
|
|
; extension. This cannot use CLI.
|
|
define double @f9(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f9:
|
|
; CHECK-NOT: cli {{.*}}
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = sext i8 %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 CLI range, using zero
|
|
; extension. This is equivalent to unsigned comparison.
|
|
define double @f10(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f10:
|
|
; CHECK: cli 0(%r2), 254
|
|
; CHECK-NEXT: blr %r14
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = zext i8 %val to i32
|
|
%cond = icmp slt i32 %ext, 254
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check signed comparison near the high end of the CLI range, using sign
|
|
; extension. This cannot use CLI.
|
|
define double @f11(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f11:
|
|
; CHECK-NOT: cli {{.*}}
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = sext i8 %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 CLI range, using zero
|
|
; extension. The condition is always true.
|
|
define double @f12(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f12:
|
|
; CHECK-NOT: cli {{.*}}
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = zext i8 %val to i32
|
|
%cond = icmp slt i32 %ext, 256
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check tests for nonnegative values.
|
|
define double @f13(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f13:
|
|
; CHECK: cli 0(%r2), 128
|
|
; CHECK-NEXT: blr %r14
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = sext i8 %val to i32
|
|
%cond = icmp sge i32 %ext, 0
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; ...and another form
|
|
define double @f14(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f14:
|
|
; CHECK: cli 0(%r2), 128
|
|
; CHECK-NEXT: blr %r14
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = sext i8 %val to i32
|
|
%cond = icmp sgt i32 %ext, -1
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check tests for negative values.
|
|
define double @f15(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f15:
|
|
; CHECK: cli 0(%r2), 127
|
|
; CHECK-NEXT: bhr %r14
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = sext i8 %val to i32
|
|
%cond = icmp slt i32 %ext, 0
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; ...and another form
|
|
define double @f16(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f16:
|
|
; CHECK: cli 0(%r2), 127
|
|
; CHECK-NEXT: bhr %r14
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = sext i8 %val to i32
|
|
%cond = icmp sle i32 %ext, -1
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|