mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 18:54:02 +01:00
134 lines
3.6 KiB
LLVM
134 lines
3.6 KiB
LLVM
; Test 64-bit equality comparisons that are really between a memory byte
|
|
; and a constant.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
|
|
|
|
; Check the low end of the 8-bit unsigned range, with zero extension.
|
|
define double @f1(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK: cli 0(%r2), 0
|
|
; CHECK-NEXT: ber %r14
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = zext i8 %val to i64
|
|
%cond = icmp eq i64 %ext, 0
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the high end of the 8-bit unsigned range, with zero extension.
|
|
define double @f2(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: cli 0(%r2), 255
|
|
; CHECK-NEXT: ber %r14
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = zext i8 %val to i64
|
|
%cond = icmp eq i64 %ext, 255
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the next value up, with zero extension. The condition is always false.
|
|
define double @f3(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK-NOT: cli
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = zext i8 %val to i64
|
|
%cond = icmp eq i64 %ext, 256
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check comparisons with -1, with zero extension.
|
|
; This condition is also always false.
|
|
define double @f4(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f4:
|
|
; CHECK-NOT: cli
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = zext i8 %val to i64
|
|
%cond = icmp eq i64 %ext, -1
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check comparisons with 0, using sign extension.
|
|
define double @f5(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f5:
|
|
; CHECK: cli 0(%r2), 0
|
|
; CHECK-NEXT: ber %r14
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = sext i8 %val to i64
|
|
%cond = icmp eq i64 %ext, 0
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the high end of the signed 8-bit range, using sign extension.
|
|
define double @f6(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f6:
|
|
; CHECK: cli 0(%r2), 127
|
|
; CHECK-NEXT: ber %r14
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = sext i8 %val to i64
|
|
%cond = icmp eq i64 %ext, 127
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the next value up, using sign extension.
|
|
; The condition is always false.
|
|
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 i64
|
|
%cond = icmp eq i64 %ext, 128
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check comparisons with -1, using sign extension.
|
|
define double @f8(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f8:
|
|
; CHECK: cli 0(%r2), 255
|
|
; CHECK-NEXT: ber %r14
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = sext i8 %val to i64
|
|
%cond = icmp eq i64 %ext, -1
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the low end of the signed 8-bit range, using sign extension.
|
|
define double @f9(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f9:
|
|
; CHECK: cli 0(%r2), 128
|
|
; CHECK-NEXT: ber %r14
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = sext i8 %val to i64
|
|
%cond = icmp eq i64 %ext, -128
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the next value down, using sign extension.
|
|
; The condition is always false.
|
|
define double @f10(double %a, double %b, i8 *%ptr) {
|
|
; CHECK-LABEL: f10:
|
|
; CHECK-NOT: cli
|
|
; CHECK: br %r14
|
|
%val = load i8, i8 *%ptr
|
|
%ext = sext i8 %val to i64
|
|
%cond = icmp eq i64 %ext, -129
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|