; Test register extension, starting with an i32.
define i64 @f1(i32 %a) {
-; CHECK: f1:
+; CHECK-LABEL: f1:
; CHECK: llghr %r2, %r2
-; CHECk: br %r14
+; CHECK: br %r14
%half = trunc i32 %a to i16
%ext = zext i16 %half to i64
ret i64 %ext
; ...and again with an i64.
define i64 @f2(i64 %a) {
-; CHECK: f2:
+; CHECK-LABEL: f2:
; CHECK: llghr %r2, %r2
-; CHECk: br %r14
+; CHECK: br %r14
%half = trunc i64 %a to i16
%ext = zext i16 %half to i64
ret i64 %ext
; Check ANDs that are equivalent to zero extension.
define i64 @f3(i64 %a) {
-; CHECK: f3:
+; CHECK-LABEL: f3:
; CHECK: llghr %r2, %r2
-; CHECk: br %r14
+; CHECK: br %r14
%ext = and i64 %a, 65535
ret i64 %ext
}
; Check LLGH with no displacement.
define i64 @f4(i16 *%src) {
-; CHECK: f4:
+; CHECK-LABEL: f4:
; CHECK: llgh %r2, 0(%r2)
; CHECK: br %r14
%half = load i16 *%src
; Check the high end of the LLGH range.
define i64 @f5(i16 *%src) {
-; CHECK: f5:
+; CHECK-LABEL: f5:
; CHECK: llgh %r2, 524286(%r2)
; CHECK: br %r14
%ptr = getelementptr i16 *%src, i64 262143
; Check the next halfword up, which needs separate address logic.
; Other sequences besides this one would be OK.
define i64 @f6(i16 *%src) {
-; CHECK: f6:
+; CHECK-LABEL: f6:
; CHECK: agfi %r2, 524288
; CHECK: llgh %r2, 0(%r2)
; CHECK: br %r14
; Check the high end of the negative LLGH range.
define i64 @f7(i16 *%src) {
-; CHECK: f7:
+; CHECK-LABEL: f7:
; CHECK: llgh %r2, -2(%r2)
; CHECK: br %r14
%ptr = getelementptr i16 *%src, i64 -1
; Check the low end of the LLGH range.
define i64 @f8(i16 *%src) {
-; CHECK: f8:
+; CHECK-LABEL: f8:
; CHECK: llgh %r2, -524288(%r2)
; CHECK: br %r14
%ptr = getelementptr i16 *%src, i64 -262144
; Check the next halfword down, which needs separate address logic.
; Other sequences besides this one would be OK.
define i64 @f9(i16 *%src) {
-; CHECK: f9:
+; CHECK-LABEL: f9:
; CHECK: agfi %r2, -524290
; CHECK: llgh %r2, 0(%r2)
; CHECK: br %r14
; Check that LLGH allows an index
define i64 @f10(i64 %src, i64 %index) {
-; CHECK: f10:
+; CHECK-LABEL: f10:
; CHECK: llgh %r2, 524287(%r3,%r2)
; CHECK: br %r14
%add1 = add i64 %src, %index
%ext = zext i16 %half to i64
ret i64 %ext
}
+
+; Test a case where we spill the source of at least one LLGHR. We want
+; to use LLGH if possible.
+define void @f11(i64 *%ptr) {
+; CHECK-LABEL: f11:
+; CHECK: llgh {{%r[0-9]+}}, 166(%r15)
+; CHECK: br %r14
+ %val0 = load volatile i64 *%ptr
+ %val1 = load volatile i64 *%ptr
+ %val2 = load volatile i64 *%ptr
+ %val3 = load volatile i64 *%ptr
+ %val4 = load volatile i64 *%ptr
+ %val5 = load volatile i64 *%ptr
+ %val6 = load volatile i64 *%ptr
+ %val7 = load volatile i64 *%ptr
+ %val8 = load volatile i64 *%ptr
+ %val9 = load volatile i64 *%ptr
+ %val10 = load volatile i64 *%ptr
+ %val11 = load volatile i64 *%ptr
+ %val12 = load volatile i64 *%ptr
+ %val13 = load volatile i64 *%ptr
+ %val14 = load volatile i64 *%ptr
+ %val15 = load volatile i64 *%ptr
+
+ %trunc0 = trunc i64 %val0 to i16
+ %trunc1 = trunc i64 %val1 to i16
+ %trunc2 = trunc i64 %val2 to i16
+ %trunc3 = trunc i64 %val3 to i16
+ %trunc4 = trunc i64 %val4 to i16
+ %trunc5 = trunc i64 %val5 to i16
+ %trunc6 = trunc i64 %val6 to i16
+ %trunc7 = trunc i64 %val7 to i16
+ %trunc8 = trunc i64 %val8 to i16
+ %trunc9 = trunc i64 %val9 to i16
+ %trunc10 = trunc i64 %val10 to i16
+ %trunc11 = trunc i64 %val11 to i16
+ %trunc12 = trunc i64 %val12 to i16
+ %trunc13 = trunc i64 %val13 to i16
+ %trunc14 = trunc i64 %val14 to i16
+ %trunc15 = trunc i64 %val15 to i16
+
+ %ext0 = zext i16 %trunc0 to i64
+ %ext1 = zext i16 %trunc1 to i64
+ %ext2 = zext i16 %trunc2 to i64
+ %ext3 = zext i16 %trunc3 to i64
+ %ext4 = zext i16 %trunc4 to i64
+ %ext5 = zext i16 %trunc5 to i64
+ %ext6 = zext i16 %trunc6 to i64
+ %ext7 = zext i16 %trunc7 to i64
+ %ext8 = zext i16 %trunc8 to i64
+ %ext9 = zext i16 %trunc9 to i64
+ %ext10 = zext i16 %trunc10 to i64
+ %ext11 = zext i16 %trunc11 to i64
+ %ext12 = zext i16 %trunc12 to i64
+ %ext13 = zext i16 %trunc13 to i64
+ %ext14 = zext i16 %trunc14 to i64
+ %ext15 = zext i16 %trunc15 to i64
+
+ store volatile i64 %val0, i64 *%ptr
+ store volatile i64 %val1, i64 *%ptr
+ store volatile i64 %val2, i64 *%ptr
+ store volatile i64 %val3, i64 *%ptr
+ store volatile i64 %val4, i64 *%ptr
+ store volatile i64 %val5, i64 *%ptr
+ store volatile i64 %val6, i64 *%ptr
+ store volatile i64 %val7, i64 *%ptr
+ store volatile i64 %val8, i64 *%ptr
+ store volatile i64 %val9, i64 *%ptr
+ store volatile i64 %val10, i64 *%ptr
+ store volatile i64 %val11, i64 *%ptr
+ store volatile i64 %val12, i64 *%ptr
+ store volatile i64 %val13, i64 *%ptr
+ store volatile i64 %val14, i64 *%ptr
+ store volatile i64 %val15, i64 *%ptr
+
+ store volatile i64 %ext0, i64 *%ptr
+ store volatile i64 %ext1, i64 *%ptr
+ store volatile i64 %ext2, i64 *%ptr
+ store volatile i64 %ext3, i64 *%ptr
+ store volatile i64 %ext4, i64 *%ptr
+ store volatile i64 %ext5, i64 *%ptr
+ store volatile i64 %ext6, i64 *%ptr
+ store volatile i64 %ext7, i64 *%ptr
+ store volatile i64 %ext8, i64 *%ptr
+ store volatile i64 %ext9, i64 *%ptr
+ store volatile i64 %ext10, i64 *%ptr
+ store volatile i64 %ext11, i64 *%ptr
+ store volatile i64 %ext12, i64 *%ptr
+ store volatile i64 %ext13, i64 *%ptr
+ store volatile i64 %ext14, i64 *%ptr
+ store volatile i64 %ext15, i64 *%ptr
+
+ ret void
+}
projects / oota-llvm.git / blobdiff