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.
175 lines
4.3 KiB
LLVM
175 lines
4.3 KiB
LLVM
; Test 32-bit multiplication in which the second operand is variable.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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declare i32 @foo()
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; Check MSR.
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define i32 @f1(i32 %a, i32 %b) {
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; CHECK-LABEL: f1:
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; CHECK: msr %r2, %r3
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; CHECK: br %r14
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%mul = mul i32 %a, %b
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ret i32 %mul
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}
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; Check the low end of the MS range.
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define i32 @f2(i32 %a, ptr %src) {
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; CHECK-LABEL: f2:
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; CHECK: ms %r2, 0(%r3)
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; CHECK: br %r14
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%b = load i32, ptr %src
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%mul = mul i32 %a, %b
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ret i32 %mul
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}
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; Check the high end of the aligned MS range.
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define i32 @f3(i32 %a, ptr %src) {
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; CHECK-LABEL: f3:
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; CHECK: ms %r2, 4092(%r3)
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; CHECK: br %r14
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%ptr = getelementptr i32, ptr %src, i64 1023
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%b = load i32, ptr %ptr
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%mul = mul i32 %a, %b
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ret i32 %mul
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}
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; Check the next word up, which should use MSY instead of MS.
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define i32 @f4(i32 %a, ptr %src) {
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; CHECK-LABEL: f4:
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; CHECK: msy %r2, 4096(%r3)
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; CHECK: br %r14
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%ptr = getelementptr i32, ptr %src, i64 1024
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%b = load i32, ptr %ptr
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%mul = mul i32 %a, %b
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ret i32 %mul
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}
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; Check the high end of the aligned MSY range.
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define i32 @f5(i32 %a, ptr %src) {
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; CHECK-LABEL: f5:
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; CHECK: msy %r2, 524284(%r3)
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; CHECK: br %r14
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%ptr = getelementptr i32, ptr %src, i64 131071
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%b = load i32, ptr %ptr
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%mul = mul i32 %a, %b
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ret i32 %mul
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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 @f6(i32 %a, ptr %src) {
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; CHECK-LABEL: f6:
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; CHECK: agfi %r3, 524288
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; CHECK: ms %r2, 0(%r3)
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; CHECK: br %r14
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%ptr = getelementptr i32, ptr %src, i64 131072
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%b = load i32, ptr %ptr
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%mul = mul i32 %a, %b
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ret i32 %mul
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}
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; Check the high end of the negative aligned MSY range.
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define i32 @f7(i32 %a, ptr %src) {
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; CHECK-LABEL: f7:
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; CHECK: msy %r2, -4(%r3)
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; CHECK: br %r14
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%ptr = getelementptr i32, ptr %src, i64 -1
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%b = load i32, ptr %ptr
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%mul = mul i32 %a, %b
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ret i32 %mul
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}
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; Check the low end of the MSY range.
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define i32 @f8(i32 %a, ptr %src) {
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; CHECK-LABEL: f8:
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; CHECK: msy %r2, -524288(%r3)
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; CHECK: br %r14
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%ptr = getelementptr i32, ptr %src, i64 -131072
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%b = load i32, ptr %ptr
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%mul = mul i32 %a, %b
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ret i32 %mul
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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 @f9(i32 %a, ptr %src) {
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; CHECK-LABEL: f9:
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; CHECK: agfi %r3, -524292
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; CHECK: ms %r2, 0(%r3)
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; CHECK: br %r14
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%ptr = getelementptr i32, ptr %src, i64 -131073
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%b = load i32, ptr %ptr
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%mul = mul i32 %a, %b
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ret i32 %mul
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}
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; Check that MS allows an index.
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define i32 @f10(i32 %a, i64 %src, i64 %index) {
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; CHECK-LABEL: f10:
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; CHECK: ms %r2, 4092({{%r4,%r3|%r3,%r4}})
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; CHECK: br %r14
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%add1 = add i64 %src, %index
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%add2 = add i64 %add1, 4092
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%ptr = inttoptr i64 %add2 to ptr
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%b = load i32, ptr %ptr
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%mul = mul i32 %a, %b
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ret i32 %mul
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}
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; Check that MSY allows an index.
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define i32 @f11(i32 %a, i64 %src, i64 %index) {
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; CHECK-LABEL: f11:
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; CHECK: msy %r2, 4096({{%r4,%r3|%r3,%r4}})
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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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%b = load i32, ptr %ptr
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%mul = mul i32 %a, %b
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ret i32 %mul
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}
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; Check that multiplications of spilled values can use MS rather than MSR.
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define i32 @f12(ptr %ptr0) {
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; CHECK-LABEL: f12:
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; CHECK: brasl %r14, foo@PLT
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; CHECK: ms %r2, 16{{[04]}}(%r15)
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; CHECK: br %r14
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%ptr1 = getelementptr i32, ptr %ptr0, i64 2
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%ptr2 = getelementptr i32, ptr %ptr0, i64 4
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%ptr3 = getelementptr i32, ptr %ptr0, i64 6
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%ptr4 = getelementptr i32, ptr %ptr0, i64 8
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%ptr5 = getelementptr i32, ptr %ptr0, i64 10
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%ptr6 = getelementptr i32, ptr %ptr0, i64 12
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%ptr7 = getelementptr i32, ptr %ptr0, i64 14
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%ptr8 = getelementptr i32, ptr %ptr0, i64 16
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%ptr9 = getelementptr i32, ptr %ptr0, i64 18
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%val0 = load i32, ptr %ptr0
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%val1 = load i32, ptr %ptr1
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%val2 = load i32, ptr %ptr2
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%val3 = load i32, ptr %ptr3
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%val4 = load i32, ptr %ptr4
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%val5 = load i32, ptr %ptr5
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%val6 = load i32, ptr %ptr6
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%val7 = load i32, ptr %ptr7
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%val8 = load i32, ptr %ptr8
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%val9 = load i32, ptr %ptr9
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%ret = call i32 @foo()
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%mul0 = mul i32 %ret, %val0
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%mul1 = mul i32 %mul0, %val1
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%mul2 = mul i32 %mul1, %val2
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%mul3 = mul i32 %mul2, %val3
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%mul4 = mul i32 %mul3, %val4
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%mul5 = mul i32 %mul4, %val5
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%mul6 = mul i32 %mul5, %val6
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%mul7 = mul i32 %mul6, %val7
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%mul8 = mul i32 %mul7, %val8
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%mul9 = mul i32 %mul8, %val9
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ret i32 %mul9
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}
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