declare i32 @llvm.bswap.i32(i32 %a)
; Check STRV with no displacement.
-define void @f1(i32 *%src, i32 %a) {
-; CHECK: f1:
+define void @f1(i32 *%dst, i32 %a) {
+; CHECK-LABEL: f1:
; CHECK: strv %r3, 0(%r2)
; CHECK: br %r14
%swapped = call i32 @llvm.bswap.i32(i32 %a)
- store i32 %swapped, i32 *%src
+ store i32 %swapped, i32 *%dst
ret void
}
; Check the high end of the aligned STRV range.
-define void @f2(i32 *%src, i32 %a) {
-; CHECK: f2:
+define void @f2(i32 *%dst, i32 %a) {
+; CHECK-LABEL: f2:
; CHECK: strv %r3, 524284(%r2)
; CHECK: br %r14
- %ptr = getelementptr i32 *%src, i64 131071
+ %ptr = getelementptr i32, i32 *%dst, i64 131071
%swapped = call i32 @llvm.bswap.i32(i32 %a)
store i32 %swapped, i32 *%ptr
ret void
; Check the next word up, which needs separate address logic.
; Other sequences besides this one would be OK.
-define void @f3(i32 *%src, i32 %a) {
-; CHECK: f3:
+define void @f3(i32 *%dst, i32 %a) {
+; CHECK-LABEL: f3:
; CHECK: agfi %r2, 524288
; CHECK: strv %r3, 0(%r2)
; CHECK: br %r14
- %ptr = getelementptr i32 *%src, i64 131072
+ %ptr = getelementptr i32, i32 *%dst, i64 131072
%swapped = call i32 @llvm.bswap.i32(i32 %a)
store i32 %swapped, i32 *%ptr
ret void
}
; Check the high end of the negative aligned STRV range.
-define void @f4(i32 *%src, i32 %a) {
-; CHECK: f4:
+define void @f4(i32 *%dst, i32 %a) {
+; CHECK-LABEL: f4:
; CHECK: strv %r3, -4(%r2)
; CHECK: br %r14
- %ptr = getelementptr i32 *%src, i64 -1
+ %ptr = getelementptr i32, i32 *%dst, i64 -1
%swapped = call i32 @llvm.bswap.i32(i32 %a)
store i32 %swapped, i32 *%ptr
ret void
}
; Check the low end of the STRV range.
-define void @f5(i32 *%src, i32 %a) {
-; CHECK: f5:
+define void @f5(i32 *%dst, i32 %a) {
+; CHECK-LABEL: f5:
; CHECK: strv %r3, -524288(%r2)
; CHECK: br %r14
- %ptr = getelementptr i32 *%src, i64 -131072
+ %ptr = getelementptr i32, i32 *%dst, i64 -131072
%swapped = call i32 @llvm.bswap.i32(i32 %a)
store i32 %swapped, i32 *%ptr
ret void
; Check the next word down, which needs separate address logic.
; Other sequences besides this one would be OK.
-define void @f6(i32 *%src, i32 %a) {
-; CHECK: f6:
+define void @f6(i32 *%dst, i32 %a) {
+; CHECK-LABEL: f6:
; CHECK: agfi %r2, -524292
; CHECK: strv %r3, 0(%r2)
; CHECK: br %r14
- %ptr = getelementptr i32 *%src, i64 -131073
+ %ptr = getelementptr i32, i32 *%dst, i64 -131073
%swapped = call i32 @llvm.bswap.i32(i32 %a)
store i32 %swapped, i32 *%ptr
ret void
; Check that STRV allows an index.
define void @f7(i64 %src, i64 %index, i32 %a) {
-; CHECK: f7:
+; CHECK-LABEL: f7:
; CHECK: strv %r4, 524287({{%r3,%r2|%r2,%r3}})
; CHECK: br %r14
%add1 = add i64 %src, %index
store i32 %swapped, i32 *%ptr
ret void
}
+
+; Check that volatile stores do not use STRV, which might access the
+; storage multple times.
+define void @f8(i32 *%dst, i32 %a) {
+; CHECK-LABEL: f8:
+; CHECK: lrvr [[REG:%r[0-5]]], %r3
+; CHECK: st [[REG]], 0(%r2)
+; CHECK: br %r14
+ %swapped = call i32 @llvm.bswap.i32(i32 %a)
+ store volatile i32 %swapped, i32 *%dst
+ ret void
+}