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.
238 lines
6.2 KiB
LLVM
238 lines
6.2 KiB
LLVM
; Test 32-bit signed comparisons between memory 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 ordered comparisons with 0.
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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: chsi 0(%r2), 0
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%val = load i32, ptr %ptr
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%cond = icmp slt i32 %val, 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 ordered comparisons with 1.
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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: chsi 0(%r2), 0
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; CHECK-NEXT: bler %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%val = load i32, ptr %ptr
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%cond = icmp slt i32 %val, 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 ordered comparisons with the high end of the signed 16-bit range.
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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: chsi 0(%r2), 32767
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%val = load i32, ptr %ptr
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%cond = icmp slt i32 %val, 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, which can't use CHSI.
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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: chsi
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; CHECK: br %r14
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%val = load i32, ptr %ptr
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%cond = icmp slt i32 %val, 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 ordered comparisons with -1.
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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: chsi 0(%r2), -1
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%val = load i32, ptr %ptr
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%cond = icmp slt i32 %val, -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 ordered comparisons with the low end of the 16-bit signed 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: chsi 0(%r2), -32768
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%val = load i32, ptr %ptr
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%cond = icmp slt i32 %val, -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, which can't use CHSI.
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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: chsi
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; CHECK: br %r14
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%val = load i32, ptr %ptr
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%cond = icmp slt i32 %val, -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 equality comparisons with 0.
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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: chsi 0(%r2), 0
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; CHECK-NEXT: ber %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%val = load i32, ptr %ptr
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%cond = icmp eq i32 %val, 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 equality comparisons with 1.
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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: chsi 0(%r2), 1
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; CHECK-NEXT: ber %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%val = load i32, ptr %ptr
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%cond = icmp eq i32 %val, 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 equality comparisons with the high end of the signed 16-bit range.
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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: chsi 0(%r2), 32767
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; CHECK-NEXT: ber %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%val = load i32, ptr %ptr
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%cond = icmp eq i32 %val, 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, which can't use CHSI.
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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-NOT: chsi
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; CHECK: br %r14
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%val = load i32, ptr %ptr
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%cond = icmp eq i32 %val, 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 equality comparisons with -1.
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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: chsi 0(%r2), -1
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; CHECK-NEXT: ber %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%val = load i32, ptr %ptr
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%cond = icmp eq i32 %val, -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 equality comparisons with the low end of the 16-bit signed range.
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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: chsi 0(%r2), -32768
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; CHECK-NEXT: ber %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%val = load i32, ptr %ptr
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%cond = icmp eq i32 %val, -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, which should be treated as a positive value.
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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: chsi
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; CHECK: br %r14
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%val = load i32, ptr %ptr
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%cond = icmp eq i32 %val, -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 the high end of the CHSI range.
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define double @f15(double %a, double %b, i32 %i1, ptr %base) {
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; CHECK-LABEL: f15:
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; CHECK: chsi 4092(%r3), 0
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%ptr = getelementptr i32, ptr %base, i64 1023
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%val = load i32, ptr %ptr
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%cond = icmp slt i32 %val, 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 next word up, which needs separate address logic,
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define double @f16(double %a, double %b, ptr %base) {
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; CHECK-LABEL: f16:
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; CHECK: aghi %r2, 4096
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; CHECK: chsi 0(%r2), 0
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%ptr = getelementptr i32, ptr %base, i64 1024
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%val = load i32, ptr %ptr
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%cond = icmp slt i32 %val, 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 negative offsets, which also need separate address logic.
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define double @f17(double %a, double %b, ptr %base) {
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; CHECK-LABEL: f17:
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; CHECK: aghi %r2, -4
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; CHECK: chsi 0(%r2), 0
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%ptr = getelementptr i32, ptr %base, i64 -1
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%val = load i32, ptr %ptr
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%cond = icmp slt i32 %val, 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 that CHSI does not allow indices.
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define double @f18(double %a, double %b, i64 %base, i64 %index) {
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; CHECK-LABEL: f18:
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; CHECK: agr {{%r2, %r3|%r3, %r2}}
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; CHECK: chsi 0({{%r[23]}}), 0
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%add = add i64 %base, %index
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%ptr = inttoptr i64 %add to ptr
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%val = load i32, ptr %ptr
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%cond = icmp slt i32 %val, 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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