a1710eb3cd
The LIT test cases were migrated with the script provided by Nikita Popov. No manual changes were made. Committed without review since no functional changes, after consultation with uweigand.
134 lines
3.6 KiB
LLVM
134 lines
3.6 KiB
LLVM
; Test 32-bit equality comparisons that are really between a memory halfword
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; and a constant.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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; Check the low end of the 16-bit unsigned range, with zero extension.
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define double @f1(double %a, double %b, ptr %ptr) {
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; CHECK-LABEL: f1:
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; CHECK: clhhsi 0(%r2), 0
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; CHECK-NEXT: ber %r14
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; CHECK: br %r14
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%val = load i16, ptr %ptr
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%ext = zext i16 %val to i32
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%cond = icmp eq i32 %ext, 0
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the high end of the 16-bit unsigned range, with zero extension.
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define double @f2(double %a, double %b, ptr %ptr) {
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; CHECK-LABEL: f2:
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; CHECK: clhhsi 0(%r2), 65535
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; CHECK-NEXT: ber %r14
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; CHECK: br %r14
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%val = load i16, ptr %ptr
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%ext = zext i16 %val to i32
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%cond = icmp eq i32 %ext, 65535
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the next value up, with zero extension. The condition is always false.
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define double @f3(double %a, double %b, ptr %ptr) {
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; CHECK-LABEL: f3:
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; CHECK-NOT: clhhsi
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; CHECK: br %r14
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%val = load i16, ptr %ptr
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%ext = zext i16 %val to i32
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%cond = icmp eq i32 %ext, 65536
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check comparisons with -1, with zero extension.
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; This condition is also always false.
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define double @f4(double %a, double %b, ptr %ptr) {
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; CHECK-LABEL: f4:
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; CHECK-NOT: clhhsi
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; CHECK: br %r14
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%val = load i16, ptr %ptr
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%ext = zext i16 %val to i32
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%cond = icmp eq i32 %ext, -1
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check comparisons with 0, using sign extension.
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define double @f5(double %a, double %b, ptr %ptr) {
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; CHECK-LABEL: f5:
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; CHECK: clhhsi 0(%r2), 0
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; CHECK-NEXT: ber %r14
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; CHECK: br %r14
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%val = load i16, ptr %ptr
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%ext = sext i16 %val to i32
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%cond = icmp eq i32 %ext, 0
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the high end of the signed 16-bit range, using sign extension.
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define double @f6(double %a, double %b, ptr %ptr) {
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; CHECK-LABEL: f6:
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; CHECK: clhhsi 0(%r2), 32767
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; CHECK-NEXT: ber %r14
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; CHECK: br %r14
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%val = load i16, ptr %ptr
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%ext = sext i16 %val to i32
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%cond = icmp eq i32 %ext, 32767
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the next value up, using sign extension.
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; The condition is always false.
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define double @f7(double %a, double %b, ptr %ptr) {
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; CHECK-LABEL: f7:
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; CHECK-NOT: clhhsi
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; CHECK: br %r14
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%val = load i16, ptr %ptr
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%ext = sext i16 %val to i32
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%cond = icmp eq i32 %ext, 32768
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check comparisons with -1, using sign extension.
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define double @f8(double %a, double %b, ptr %ptr) {
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; CHECK-LABEL: f8:
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; CHECK: clhhsi 0(%r2), 65535
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; CHECK-NEXT: ber %r14
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; CHECK: br %r14
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%val = load i16, ptr %ptr
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%ext = sext i16 %val to i32
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%cond = icmp eq i32 %ext, -1
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the low end of the signed 16-bit range, using sign extension.
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define double @f9(double %a, double %b, ptr %ptr) {
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; CHECK-LABEL: f9:
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; CHECK: clhhsi 0(%r2), 32768
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; CHECK-NEXT: ber %r14
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; CHECK: br %r14
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%val = load i16, ptr %ptr
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%ext = sext i16 %val to i32
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%cond = icmp eq i32 %ext, -32768
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the next value down, using sign extension.
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; The condition is always false.
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define double @f10(double %a, double %b, ptr %ptr) {
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; CHECK-LABEL: f10:
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; CHECK-NOT: clhhsi
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; CHECK: br %r14
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%val = load i16, ptr %ptr
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%ext = sext i16 %val to i32
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%cond = icmp eq i32 %ext, -32769
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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