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.
135 lines
3.5 KiB
LLVM
135 lines
3.5 KiB
LLVM
; Test 32-bit GPR accesses to a PC-relative location.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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@gsrc16 = dso_local global i16 1
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@gsrc32 = dso_local global i32 1
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@gdst16 = dso_local global i16 2
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@gdst32 = dso_local global i32 2
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@gsrc16u = dso_local global i16 1, align 1, section "foo"
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@gsrc32u = dso_local global i32 1, align 2, section "foo"
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@gdst16u = dso_local global i16 2, align 1, section "foo"
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@gdst32u = dso_local global i32 2, align 2, section "foo"
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@garray8 = dso_local global [2 x i8] [i8 100, i8 101]
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@garray16 = dso_local global [2 x i16] [i16 102, i16 103]
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; Check sign-extending loads from i16.
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define dso_local i32 @f1() {
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; CHECK-LABEL: f1:
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; CHECK: lhrl %r2, gsrc16
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; CHECK: br %r14
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%val = load i16, ptr@gsrc16
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%ext = sext i16 %val to i32
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ret i32 %ext
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}
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; Check zero-extending loads from i16.
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define dso_local i32 @f2() {
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; CHECK-LABEL: f2:
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; CHECK: llhrl %r2, gsrc16
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; CHECK: br %r14
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%val = load i16, ptr@gsrc16
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%ext = zext i16 %val to i32
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ret i32 %ext
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}
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; Check truncating 16-bit stores.
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define dso_local void @f3(i32 %val) {
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; CHECK-LABEL: f3:
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; CHECK: sthrl %r2, gdst16
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; CHECK: br %r14
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%half = trunc i32 %val to i16
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store i16 %half, ptr@gdst16
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ret void
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}
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; Check plain loads and stores.
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define dso_local void @f4() {
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; CHECK-LABEL: f4:
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; CHECK: lrl %r0, gsrc32
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; CHECK: strl %r0, gdst32
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; CHECK: br %r14
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%val = load i32, ptr@gsrc32
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store i32 %val, ptr@gdst32
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ret void
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}
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; Repeat f1 with an unaligned variable.
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define dso_local i32 @f5() {
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; CHECK-LABEL: f5:
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; CHECK: lgrl [[REG:%r[0-5]]], gsrc16u
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; CHECK: lh %r2, 0([[REG]])
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; CHECK: br %r14
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%val = load i16, ptr@gsrc16u, align 1
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%ext = sext i16 %val to i32
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ret i32 %ext
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}
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; Repeat f2 with an unaligned variable.
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define dso_local i32 @f6() {
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; CHECK-LABEL: f6:
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; CHECK: lgrl [[REG:%r[0-5]]], gsrc16u
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; CHECK: llh %r2, 0([[REG]])
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; CHECK: br %r14
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%val = load i16, ptr@gsrc16u, align 1
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%ext = zext i16 %val to i32
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ret i32 %ext
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}
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; Repeat f3 with an unaligned variable.
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define dso_local void @f7(i32 %val) {
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; CHECK-LABEL: f7:
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; CHECK: lgrl [[REG:%r[0-5]]], gdst16u
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; CHECK: sth %r2, 0([[REG]])
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; CHECK: br %r14
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%half = trunc i32 %val to i16
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store i16 %half, ptr@gdst16u, align 1
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ret void
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}
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; Repeat f4 with unaligned variables.
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define dso_local void @f8() {
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; CHECK-LABEL: f8:
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; CHECK: larl [[REG:%r[0-5]]], gsrc32u
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; CHECK: l [[VAL:%r[0-5]]], 0([[REG]])
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; CHECK: larl [[REG:%r[0-5]]], gdst32u
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; CHECK: st [[VAL]], 0([[REG]])
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; CHECK: br %r14
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%val = load i32, ptr@gsrc32u, align 2
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store i32 %val, ptr@gdst32u, align 2
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ret void
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}
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; Test a case where we want to use one LARL for accesses to two different
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; parts of a variable.
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define dso_local void @f9() {
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; CHECK-LABEL: f9:
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; CHECK: larl [[REG:%r[0-5]]], garray8
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; CHECK: llc [[VAL:%r[0-5]]], 0([[REG]])
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; CHECK: srl [[VAL]], 1
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; CHECK: stc [[VAL]], 1([[REG]])
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; CHECK: br %r14
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%ptr1 = getelementptr [2 x i8], ptr@garray8, i64 0, i64 0
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%ptr2 = getelementptr [2 x i8], ptr@garray8, i64 0, i64 1
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%val = load i8, ptr %ptr1
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%shr = lshr i8 %val, 1
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store i8 %shr, ptr %ptr2
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ret void
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}
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; Test a case where we want to use separate relative-long addresses for
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; two different parts of a variable.
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define dso_local void @f10() {
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; CHECK-LABEL: f10:
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; CHECK: llhrl [[VAL:%r[0-5]]], garray16
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; CHECK: srl [[VAL]], 1
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; CHECK: sthrl [[VAL]], garray16+2
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; CHECK: br %r14
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%ptr1 = getelementptr [2 x i16], ptr@garray16, i64 0, i64 0
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%ptr2 = getelementptr [2 x i16], ptr@garray16, i64 0, i64 1
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%val = load i16, ptr %ptr1
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%shr = lshr i16 %val, 1
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store i16 %shr, ptr %ptr2
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ret void
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}
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