derek.holloway
7502bf64a4
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111 lines
2.6 KiB
LLVM
111 lines
2.6 KiB
LLVM
; Test 32-bit GPR loads.
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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 L range.
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define i32 @f1(ptr %src) {
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; CHECK-LABEL: f1:
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; CHECK: l %r2, 0(%r2)
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; CHECK: br %r14
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%val = load i32, ptr %src
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ret i32 %val
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}
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; Check the high end of the aligned L range.
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define i32 @f2(ptr %src) {
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; CHECK-LABEL: f2:
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; CHECK: l %r2, 4092(%r2)
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; CHECK: br %r14
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%ptr = getelementptr i32, ptr %src, i64 1023
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%val = load i32, ptr %ptr
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ret i32 %val
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}
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; Check the next word up, which should use LY instead of L.
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define i32 @f3(ptr %src) {
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; CHECK-LABEL: f3:
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; CHECK: ly %r2, 4096(%r2)
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; CHECK: br %r14
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%ptr = getelementptr i32, ptr %src, i64 1024
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%val = load i32, ptr %ptr
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ret i32 %val
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}
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; Check the high end of the aligned LY range.
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define i32 @f4(ptr %src) {
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; CHECK-LABEL: f4:
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; CHECK: ly %r2, 524284(%r2)
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; CHECK: br %r14
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%ptr = getelementptr i32, ptr %src, i64 131071
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%val = load i32, ptr %ptr
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ret i32 %val
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}
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; Check the next word up, which needs separate address logic.
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; Other sequences besides this one would be OK.
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define i32 @f5(ptr %src) {
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; CHECK-LABEL: f5:
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; CHECK: agfi %r2, 524288
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; CHECK: l %r2, 0(%r2)
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; CHECK: br %r14
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%ptr = getelementptr i32, ptr %src, i64 131072
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%val = load i32, ptr %ptr
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ret i32 %val
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}
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; Check the high end of the negative aligned LY range.
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define i32 @f6(ptr %src) {
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; CHECK-LABEL: f6:
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; CHECK: ly %r2, -4(%r2)
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; CHECK: br %r14
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%ptr = getelementptr i32, ptr %src, i64 -1
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%val = load i32, ptr %ptr
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ret i32 %val
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}
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; Check the low end of the LY range.
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define i32 @f7(ptr %src) {
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; CHECK-LABEL: f7:
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; CHECK: ly %r2, -524288(%r2)
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; CHECK: br %r14
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%ptr = getelementptr i32, ptr %src, i64 -131072
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%val = load i32, ptr %ptr
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ret i32 %val
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}
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; Check the next word down, which needs separate address logic.
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; Other sequences besides this one would be OK.
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define i32 @f8(ptr %src) {
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; CHECK-LABEL: f8:
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; CHECK: agfi %r2, -524292
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; CHECK: l %r2, 0(%r2)
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; CHECK: br %r14
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%ptr = getelementptr i32, ptr %src, i64 -131073
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%val = load i32, ptr %ptr
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ret i32 %val
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}
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; Check that L allows an index.
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define i32 @f9(i64 %src, i64 %index) {
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; CHECK-LABEL: f9:
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; CHECK: l %r2, 4095({{%r3,%r2|%r2,%r3}})
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; CHECK: br %r14
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%add1 = add i64 %src, %index
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%add2 = add i64 %add1, 4095
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%ptr = inttoptr i64 %add2 to ptr
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%val = load i32, ptr %ptr
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ret i32 %val
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}
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; Check that LY allows an index.
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define i32 @f10(i64 %src, i64 %index) {
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; CHECK-LABEL: f10:
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; CHECK: ly %r2, 4096({{%r3,%r2|%r2,%r3}})
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; CHECK: br %r14
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%add1 = add i64 %src, %index
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%add2 = add i64 %add1, 4096
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%ptr = inttoptr i64 %add2 to ptr
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%val = load i32, ptr %ptr
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ret i32 %val
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}
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