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.
210 lines
5.8 KiB
LLVM
210 lines
5.8 KiB
LLVM
; Test zero extensions from a byte to an i32. The tests here
|
|
; assume z10 register pressure, without the high words being available.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
|
|
|
|
; Test register extension, starting with an i32.
|
|
define i32 @f1(i32 %a) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK: llcr %r2, %r2
|
|
; CHECK: br %r14
|
|
%byte = trunc i32 %a to i8
|
|
%ext = zext i8 %byte to i32
|
|
ret i32 %ext
|
|
}
|
|
|
|
; ...and again with an i64.
|
|
define i32 @f2(i64 %a) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: llcr %r2, %r2
|
|
; CHECK: br %r14
|
|
%byte = trunc i64 %a to i8
|
|
%ext = zext i8 %byte to i32
|
|
ret i32 %ext
|
|
}
|
|
|
|
; Check ANDs that are equivalent to zero extension.
|
|
define i32 @f3(i32 %a) {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK: llcr %r2, %r2
|
|
; CHECK: br %r14
|
|
%ext = and i32 %a, 255
|
|
ret i32 %ext
|
|
}
|
|
|
|
; Check LLC with no displacement.
|
|
define i32 @f4(ptr %src) {
|
|
; CHECK-LABEL: f4:
|
|
; CHECK: llc %r2, 0(%r2)
|
|
; CHECK: br %r14
|
|
%byte = load i8, ptr %src
|
|
%ext = zext i8 %byte to i32
|
|
ret i32 %ext
|
|
}
|
|
|
|
; Check the high end of the LLC range.
|
|
define i32 @f5(ptr %src) {
|
|
; CHECK-LABEL: f5:
|
|
; CHECK: llc %r2, 524287(%r2)
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i8, ptr %src, i64 524287
|
|
%byte = load i8, ptr %ptr
|
|
%ext = zext i8 %byte to i32
|
|
ret i32 %ext
|
|
}
|
|
|
|
; Check the next byte up, which needs separate address logic.
|
|
; Other sequences besides this one would be OK.
|
|
define i32 @f6(ptr %src) {
|
|
; CHECK-LABEL: f6:
|
|
; CHECK: agfi %r2, 524288
|
|
; CHECK: llc %r2, 0(%r2)
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i8, ptr %src, i64 524288
|
|
%byte = load i8, ptr %ptr
|
|
%ext = zext i8 %byte to i32
|
|
ret i32 %ext
|
|
}
|
|
|
|
; Check the high end of the negative LLC range.
|
|
define i32 @f7(ptr %src) {
|
|
; CHECK-LABEL: f7:
|
|
; CHECK: llc %r2, -1(%r2)
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i8, ptr %src, i64 -1
|
|
%byte = load i8, ptr %ptr
|
|
%ext = zext i8 %byte to i32
|
|
ret i32 %ext
|
|
}
|
|
|
|
; Check the low end of the LLC range.
|
|
define i32 @f8(ptr %src) {
|
|
; CHECK-LABEL: f8:
|
|
; CHECK: llc %r2, -524288(%r2)
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i8, ptr %src, i64 -524288
|
|
%byte = load i8, ptr %ptr
|
|
%ext = zext i8 %byte to i32
|
|
ret i32 %ext
|
|
}
|
|
|
|
; Check the next byte down, which needs separate address logic.
|
|
; Other sequences besides this one would be OK.
|
|
define i32 @f9(ptr %src) {
|
|
; CHECK-LABEL: f9:
|
|
; CHECK: agfi %r2, -524289
|
|
; CHECK: llc %r2, 0(%r2)
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i8, ptr %src, i64 -524289
|
|
%byte = load i8, ptr %ptr
|
|
%ext = zext i8 %byte to i32
|
|
ret i32 %ext
|
|
}
|
|
|
|
; Check that LLC allows an index
|
|
define i32 @f10(i64 %src, i64 %index) {
|
|
; CHECK-LABEL: f10:
|
|
; CHECK: llc %r2, 524287(%r3,%r2)
|
|
; CHECK: br %r14
|
|
%add1 = add i64 %src, %index
|
|
%add2 = add i64 %add1, 524287
|
|
%ptr = inttoptr i64 %add2 to ptr
|
|
%byte = load i8, ptr %ptr
|
|
%ext = zext i8 %byte to i32
|
|
ret i32 %ext
|
|
}
|
|
|
|
; Test a case where we spill the source of at least one LLCR. We want
|
|
; to use LLC if possible.
|
|
define void @f11(ptr %ptr) {
|
|
; CHECK-LABEL: f11:
|
|
; CHECK: llc {{%r[0-9]+}}, 187(%r15)
|
|
; CHECK: br %r14
|
|
%val0 = load volatile i32, ptr %ptr
|
|
%val1 = load volatile i32, ptr %ptr
|
|
%val2 = load volatile i32, ptr %ptr
|
|
%val3 = load volatile i32, ptr %ptr
|
|
%val4 = load volatile i32, ptr %ptr
|
|
%val5 = load volatile i32, ptr %ptr
|
|
%val6 = load volatile i32, ptr %ptr
|
|
%val7 = load volatile i32, ptr %ptr
|
|
%val8 = load volatile i32, ptr %ptr
|
|
%val9 = load volatile i32, ptr %ptr
|
|
%val10 = load volatile i32, ptr %ptr
|
|
%val11 = load volatile i32, ptr %ptr
|
|
%val12 = load volatile i32, ptr %ptr
|
|
%val13 = load volatile i32, ptr %ptr
|
|
%val14 = load volatile i32, ptr %ptr
|
|
%val15 = load volatile i32, ptr %ptr
|
|
|
|
%trunc0 = trunc i32 %val0 to i8
|
|
%trunc1 = trunc i32 %val1 to i8
|
|
%trunc2 = trunc i32 %val2 to i8
|
|
%trunc3 = trunc i32 %val3 to i8
|
|
%trunc4 = trunc i32 %val4 to i8
|
|
%trunc5 = trunc i32 %val5 to i8
|
|
%trunc6 = trunc i32 %val6 to i8
|
|
%trunc7 = trunc i32 %val7 to i8
|
|
%trunc8 = trunc i32 %val8 to i8
|
|
%trunc9 = trunc i32 %val9 to i8
|
|
%trunc10 = trunc i32 %val10 to i8
|
|
%trunc11 = trunc i32 %val11 to i8
|
|
%trunc12 = trunc i32 %val12 to i8
|
|
%trunc13 = trunc i32 %val13 to i8
|
|
%trunc14 = trunc i32 %val14 to i8
|
|
%trunc15 = trunc i32 %val15 to i8
|
|
|
|
%ext0 = zext i8 %trunc0 to i32
|
|
%ext1 = zext i8 %trunc1 to i32
|
|
%ext2 = zext i8 %trunc2 to i32
|
|
%ext3 = zext i8 %trunc3 to i32
|
|
%ext4 = zext i8 %trunc4 to i32
|
|
%ext5 = zext i8 %trunc5 to i32
|
|
%ext6 = zext i8 %trunc6 to i32
|
|
%ext7 = zext i8 %trunc7 to i32
|
|
%ext8 = zext i8 %trunc8 to i32
|
|
%ext9 = zext i8 %trunc9 to i32
|
|
%ext10 = zext i8 %trunc10 to i32
|
|
%ext11 = zext i8 %trunc11 to i32
|
|
%ext12 = zext i8 %trunc12 to i32
|
|
%ext13 = zext i8 %trunc13 to i32
|
|
%ext14 = zext i8 %trunc14 to i32
|
|
%ext15 = zext i8 %trunc15 to i32
|
|
|
|
store volatile i32 %val0, ptr %ptr
|
|
store volatile i32 %val1, ptr %ptr
|
|
store volatile i32 %val2, ptr %ptr
|
|
store volatile i32 %val3, ptr %ptr
|
|
store volatile i32 %val4, ptr %ptr
|
|
store volatile i32 %val5, ptr %ptr
|
|
store volatile i32 %val6, ptr %ptr
|
|
store volatile i32 %val7, ptr %ptr
|
|
store volatile i32 %val8, ptr %ptr
|
|
store volatile i32 %val9, ptr %ptr
|
|
store volatile i32 %val10, ptr %ptr
|
|
store volatile i32 %val11, ptr %ptr
|
|
store volatile i32 %val12, ptr %ptr
|
|
store volatile i32 %val13, ptr %ptr
|
|
store volatile i32 %val14, ptr %ptr
|
|
store volatile i32 %val15, ptr %ptr
|
|
|
|
store volatile i32 %ext0, ptr %ptr
|
|
store volatile i32 %ext1, ptr %ptr
|
|
store volatile i32 %ext2, ptr %ptr
|
|
store volatile i32 %ext3, ptr %ptr
|
|
store volatile i32 %ext4, ptr %ptr
|
|
store volatile i32 %ext5, ptr %ptr
|
|
store volatile i32 %ext6, ptr %ptr
|
|
store volatile i32 %ext7, ptr %ptr
|
|
store volatile i32 %ext8, ptr %ptr
|
|
store volatile i32 %ext9, ptr %ptr
|
|
store volatile i32 %ext10, ptr %ptr
|
|
store volatile i32 %ext11, ptr %ptr
|
|
store volatile i32 %ext12, ptr %ptr
|
|
store volatile i32 %ext13, ptr %ptr
|
|
store volatile i32 %ext14, ptr %ptr
|
|
store volatile i32 %ext15, ptr %ptr
|
|
|
|
ret void
|
|
}
|