mirror of
https://github.com/jeremysrand/llvm-65816.git
synced 2024-11-05 00:06:07 +00:00
134 lines
3.6 KiB
LLVM
134 lines
3.6 KiB
LLVM
; Test 32-bit equality comparisons that are really between a memory halfword
|
|
; and a constant.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
|
|
|
|
; Check the low end of the 16-bit unsigned range, with zero extension.
|
|
define double @f1(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK: clhhsi 0(%r2), 0
|
|
; CHECK-NEXT: je
|
|
; CHECK: br %r14
|
|
%val = load i16 *%ptr
|
|
%ext = zext i16 %val to i32
|
|
%cond = icmp eq i32 %ext, 0
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the high end of the 16-bit unsigned range, with zero extension.
|
|
define double @f2(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: clhhsi 0(%r2), 65535
|
|
; CHECK-NEXT: je
|
|
; CHECK: br %r14
|
|
%val = load i16 *%ptr
|
|
%ext = zext i16 %val to i32
|
|
%cond = icmp eq i32 %ext, 65535
|
|
%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, i16 *%ptr) {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK-NOT: clhhsi
|
|
; CHECK: br %r14
|
|
%val = load i16 *%ptr
|
|
%ext = zext i16 %val to i32
|
|
%cond = icmp eq i32 %ext, 65536
|
|
%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, i16 *%ptr) {
|
|
; CHECK-LABEL: f4:
|
|
; CHECK-NOT: clhhsi
|
|
; CHECK: br %r14
|
|
%val = load i16 *%ptr
|
|
%ext = zext i16 %val to i32
|
|
%cond = icmp eq i32 %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, i16 *%ptr) {
|
|
; CHECK-LABEL: f5:
|
|
; CHECK: clhhsi 0(%r2), 0
|
|
; CHECK-NEXT: je
|
|
; CHECK: br %r14
|
|
%val = load i16 *%ptr
|
|
%ext = sext i16 %val to i32
|
|
%cond = icmp eq i32 %ext, 0
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the high end of the signed 16-bit range, using sign extension.
|
|
define double @f6(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f6:
|
|
; CHECK: clhhsi 0(%r2), 32767
|
|
; CHECK-NEXT: je
|
|
; CHECK: br %r14
|
|
%val = load i16 *%ptr
|
|
%ext = sext i16 %val to i32
|
|
%cond = icmp eq i32 %ext, 32767
|
|
%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, i16 *%ptr) {
|
|
; CHECK-LABEL: f7:
|
|
; CHECK-NOT: clhhsi
|
|
; CHECK: br %r14
|
|
%val = load i16 *%ptr
|
|
%ext = sext i16 %val to i32
|
|
%cond = icmp eq i32 %ext, 32768
|
|
%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, i16 *%ptr) {
|
|
; CHECK-LABEL: f8:
|
|
; CHECK: clhhsi 0(%r2), 65535
|
|
; CHECK-NEXT: je
|
|
; CHECK: br %r14
|
|
%val = load i16 *%ptr
|
|
%ext = sext i16 %val to i32
|
|
%cond = icmp eq i32 %ext, -1
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the low end of the signed 16-bit range, using sign extension.
|
|
define double @f9(double %a, double %b, i16 *%ptr) {
|
|
; CHECK-LABEL: f9:
|
|
; CHECK: clhhsi 0(%r2), 32768
|
|
; CHECK-NEXT: je
|
|
; CHECK: br %r14
|
|
%val = load i16 *%ptr
|
|
%ext = sext i16 %val to i32
|
|
%cond = icmp eq i32 %ext, -32768
|
|
%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, i16 *%ptr) {
|
|
; CHECK-LABEL: f10:
|
|
; CHECK-NOT: clhhsi
|
|
; CHECK: br %r14
|
|
%val = load i16 *%ptr
|
|
%ext = sext i16 %val to i32
|
|
%cond = icmp eq i32 %ext, -32769
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|