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.
226 lines
6.5 KiB
LLVM
226 lines
6.5 KiB
LLVM
; Test 32-bit ordered 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 unsigned comparison near the low end of the CLHHSI range, using zero
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; 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), 1
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; CHECK-NEXT: bhr %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 ugt 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 unsigned comparison near the low end of the CLHHSI range, using sign
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; 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), 1
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; CHECK-NEXT: bhr %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 ugt 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 unsigned comparison near the high end of the CLHHSI range, using zero
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; extension.
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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: clhhsi 0(%r2), 65534
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; CHECK-NEXT: blr %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 ult i32 %ext, 65534
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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 unsigned comparison near the high end of the CLHHSI range, using sign
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; extension.
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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: clhhsi 0(%r2), 65534
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; CHECK-NEXT: blr %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 ult i32 %ext, -2
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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 unsigned comparison above the high end of the CLHHSI range, using zero
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; extension. The condition is always true.
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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-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 ult 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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; When using unsigned comparison with sign extension, equality with values
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; in the range [32768, MAX-32769] is impossible, and ordered comparisons with
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; those values are effectively sign tests. Since such comparisons are
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; unlikely to occur in practice, we don't bother optimizing the second case,
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; and simply ignore CLHHSI for this range. First check the low end of the
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; range.
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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-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 ult 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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; ...and then the high end.
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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 ult 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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; Check signed comparison near the low end of the CLHHSI range, using zero
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; extension. This is equivalent to unsigned comparison.
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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), 1
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; CHECK-NEXT: bhr %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 sgt 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 signed comparison near the low end of the CLHHSI range, using sign
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; extension. This should use CHHSI instead.
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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: chhsi 0(%r2), 1
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; CHECK-NEXT: bhr %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 sgt 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 signed comparison near the high end of the CLHHSI range, using zero
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; extension. This is equivalent to unsigned comparison.
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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: clhhsi 0(%r2), 65534
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; CHECK-NEXT: blr %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 slt i32 %ext, 65534
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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 signed comparison near the high end of the CLHHSI range, using sign
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; extension. This should use CHHSI instead.
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define double @f11(double %a, double %b, ptr %ptr) {
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; CHECK-LABEL: f11:
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; CHECK: chhsi 0(%r2), -2
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; CHECK-NEXT: blr %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 slt i32 %ext, -2
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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 signed comparison above the high end of the CLHHSI range, using zero
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; extension. The condition is always true.
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define double @f12(double %a, double %b, ptr %ptr) {
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; CHECK-LABEL: f12:
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; CHECK-NOT: cli
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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 slt 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 signed comparison near the high end of the CHHSI range, using sign
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; extension.
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define double @f13(double %a, double %b, ptr %ptr) {
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; CHECK-LABEL: f13:
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; CHECK: chhsi 0(%r2), 32766
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; CHECK-NEXT: blr %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 slt i32 %ext, 32766
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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 signed comparison above the high end of the CHHSI range, using sign
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; extension. This condition is always true.
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define double @f14(double %a, double %b, ptr %ptr) {
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; CHECK-LABEL: f14:
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; CHECK-NOT: chhsi
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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 slt 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 signed comparison near the low end of the CHHSI range, using sign
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; extension.
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define double @f15(double %a, double %b, ptr %ptr) {
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; CHECK-LABEL: f15:
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; CHECK: chhsi 0(%r2), -32767
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; CHECK-NEXT: bhr %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 sgt 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 signed comparison below the low end of the CHHSI range, using sign
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; extension. This condition is always true.
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define double @f16(double %a, double %b, ptr %ptr) {
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; CHECK-LABEL: f16:
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; CHECK-NOT: chhsi
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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 sgt 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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