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7e501cf4c3
This update was done with the following bash script:
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while read NAME; do
echo "$NAME"
if ! grep -q "^; *RUN: *llc.*debug" $NAME; then
TEMP=`mktemp -t temp`
cp $NAME $TEMP
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done
llvm-svn: 186280
226 lines
6.4 KiB
LLVM
226 lines
6.4 KiB
LLVM
; Test 64-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, i16 *%ptr) {
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; CHECK-LABEL: f1:
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; CHECK: clhhsi 0(%r2), 1
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; CHECK-NEXT: jh
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; CHECK: br %r14
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%val = load i16 *%ptr
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%ext = zext i16 %val to i64
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%cond = icmp ugt i64 %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, i16 *%ptr) {
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; CHECK-LABEL: f2:
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; CHECK: clhhsi 0(%r2), 1
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; CHECK-NEXT: jh
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; CHECK: br %r14
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%val = load i16 *%ptr
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%ext = sext i16 %val to i64
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%cond = icmp ugt i64 %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, i16 *%ptr) {
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; CHECK-LABEL: f3:
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; CHECK: clhhsi 0(%r2), 65534
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; CHECK-NEXT: jl
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; CHECK: br %r14
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%val = load i16 *%ptr
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%ext = zext i16 %val to i64
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%cond = icmp ult i64 %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, i16 *%ptr) {
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; CHECK-LABEL: f4:
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; CHECK: clhhsi 0(%r2), 65534
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; CHECK-NEXT: jl
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; CHECK: br %r14
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%val = load i16 *%ptr
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%ext = sext i16 %val to i64
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%cond = icmp ult i64 %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, i16 *%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
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%ext = zext i16 %val to i64
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%cond = icmp ult i64 %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, i16 *%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
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%ext = sext i16 %val to i64
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%cond = icmp ult i64 %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, i16 *%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
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%ext = sext i16 %val to i64
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%cond = icmp ult i64 %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, i16 *%ptr) {
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; CHECK-LABEL: f8:
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; CHECK: clhhsi 0(%r2), 1
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; CHECK-NEXT: jh
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; CHECK: br %r14
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%val = load i16 *%ptr
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%ext = zext i16 %val to i64
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%cond = icmp sgt i64 %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, i16 *%ptr) {
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; CHECK-LABEL: f9:
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; CHECK: chhsi 0(%r2), 1
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; CHECK-NEXT: jh
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; CHECK: br %r14
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%val = load i16 *%ptr
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%ext = sext i16 %val to i64
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%cond = icmp sgt i64 %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, i16 *%ptr) {
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; CHECK-LABEL: f10:
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; CHECK: clhhsi 0(%r2), 65534
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; CHECK-NEXT: jl
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; CHECK: br %r14
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%val = load i16 *%ptr
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%ext = zext i16 %val to i64
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%cond = icmp slt i64 %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, i16 *%ptr) {
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; CHECK-LABEL: f11:
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; CHECK: chhsi 0(%r2), -2
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; CHECK-NEXT: jl
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; CHECK: br %r14
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%val = load i16 *%ptr
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%ext = sext i16 %val to i64
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%cond = icmp slt i64 %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, i16 *%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
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%ext = zext i16 %val to i64
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%cond = icmp slt i64 %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, i16 *%ptr) {
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; CHECK-LABEL: f13:
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; CHECK: chhsi 0(%r2), 32766
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; CHECK-NEXT: jl
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; CHECK: br %r14
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%val = load i16 *%ptr
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%ext = sext i16 %val to i64
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%cond = icmp slt i64 %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, i16 *%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
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%ext = sext i16 %val to i64
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%cond = icmp slt i64 %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, i16 *%ptr) {
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; CHECK-LABEL: f15:
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; CHECK: chhsi 0(%r2), -32767
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; CHECK-NEXT: jh
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; CHECK: br %r14
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%val = load i16 *%ptr
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%ext = sext i16 %val to i64
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%cond = icmp sgt i64 %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, i16 *%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
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%ext = sext i16 %val to i64
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%cond = icmp sgt i64 %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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