mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-22 20:43:44 +02:00
86ba72cd49
This re-applies commit r292189, reverted in r292191. SelectionDAGBuilder recognizes libfuncs using some homegrown parameter type-checking. Use TLI instead, removing another heap of redundant code. This isn't strictly NFC, as the SDAG code was too lax. Concretely, this means changes are required to a few tests: - calling a non-variadic function via a variadic prototype isn't OK; it just happens to work on x86_64 (but not on, e.g., aarch64). - mempcpy has a size_t parameter; the SDAG code accepts any integer type, which meant using i32 on x86_64 worked. - a handful of SystemZ tests check the SDAG support for lax prototype checking: Ulrich agrees on removing them. I don't think it's worth supporting any of these (IMO) invalid testcases. Instead, fix them to be more meaningful. llvm-svn: 294028
58 lines
1.7 KiB
LLVM
58 lines
1.7 KiB
LLVM
; Test memchr using SRST, with the correct prototype.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu -no-integrated-as | FileCheck %s
|
|
|
|
declare i8 *@memchr(i8 *%src, i32 %char, i64 %len)
|
|
|
|
; Test a simple forwarded call.
|
|
define i8 *@f1(i64 %len, i8 *%src, i32 %char) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK-DAG: agr %r2, %r3
|
|
; CHECK-DAG: llcr %r0, %r4
|
|
; CHECK: [[LABEL:\.[^:]*]]:
|
|
; CHECK: srst %r2, %r3
|
|
; CHECK-NEXT: jo [[LABEL]]
|
|
; CHECK: blr %r14
|
|
; CHECK: lghi %r2, 0
|
|
; CHECK: br %r14
|
|
%res = call i8 *@memchr(i8 *%src, i32 %char, i64 %len)
|
|
ret i8 *%res
|
|
}
|
|
|
|
; Test a doubled call with no use of %r0 in between. There should be a
|
|
; single load of %r0.
|
|
define i8 *@f2(i8 *%src, i8 *%charptr, i64 %len) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: llc %r0, 0(%r3)
|
|
; CHECK-NOT: %r0
|
|
; CHECK: srst [[RES1:%r[1-5]]], %r2
|
|
; CHECK-NOT: %r0
|
|
; CHECK: srst %r2, [[RES1]]
|
|
; CHECK: br %r14
|
|
%char = load volatile i8 , i8 *%charptr
|
|
%charext = zext i8 %char to i32
|
|
%res1 = call i8 *@memchr(i8 *%src, i32 %charext, i64 %len)
|
|
%res2 = call i8 *@memchr(i8 *%res1, i32 %charext, i64 %len)
|
|
ret i8 *%res2
|
|
}
|
|
|
|
; Test a doubled call with a use of %r0 in between. %r0 must be loaded
|
|
; for each loop.
|
|
define i8 *@f3(i8 *%src, i8 *%charptr, i64 %len) {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK: llc [[CHAR:%r[1-5]]], 0(%r3)
|
|
; CHECK: lr %r0, [[CHAR]]
|
|
; CHECK: srst [[RES1:%r[1-5]]], %r2
|
|
; CHECK: lhi %r0, 0
|
|
; CHECK: blah %r0
|
|
; CHECK: lr %r0, [[CHAR]]
|
|
; CHECK: srst %r2, [[RES1]]
|
|
; CHECK: br %r14
|
|
%char = load volatile i8 , i8 *%charptr
|
|
%charext = zext i8 %char to i32
|
|
%res1 = call i8 *@memchr(i8 *%src, i32 %charext, i64 %len)
|
|
call void asm sideeffect "blah $0", "{r0}" (i32 0)
|
|
%res2 = call i8 *@memchr(i8 *%res1, i32 %charext, i64 %len)
|
|
ret i8 *%res2
|
|
}
|