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llvm-mirror/test/CodeGen/AMDGPU/mem-builtins.ll
Jay Foad 02f664086c [AMDGPU] Fix offset for REL32_HI relocs
The addend in a REL32 reloc needs to be adjusted to account for the
offset from the PC value returned by the s_getpc instruction to the
point where the reloc is applied. This was being done correctly for
(GOTPC)REL32_LO but not for (GOTPC)REL32_HI. This will only make a
difference if the target symbol happens to get loaded almost exactly
a multiple of 4G away from the relocated instructions.

Differential Revision: https://reviews.llvm.org/D86938
2020-09-02 10:55:55 +01:00

74 lines
3.2 KiB
LLVM

; RUN: not llc -march=r600 < %s 2>&1 | FileCheck -check-prefix=ERROR %s
; RUN: llc -march=amdgcn < %s | FileCheck -check-prefix=GCN %s
declare hidden i32 @memcmp(i8 addrspace(1)* readonly nocapture, i8 addrspace(1)* readonly nocapture, i64) #0
declare hidden i8 addrspace(1)* @memchr(i8 addrspace(1)* readonly nocapture, i32, i64) #1
declare hidden i8* @strcpy(i8* nocapture, i8* readonly nocapture) #0
declare hidden i32 @strlen(i8* nocapture) #1
declare hidden i32 @strnlen(i8* nocapture, i32) #1
declare hidden i32 @strcmp(i8* nocapture, i8* nocapture) #1
; ERROR: error: <unknown>:0:0: in function test_memcmp void (i8 addrspace(1)*, i8 addrspace(1)*, i32*): unsupported call to function memcmp
; GCN: s_add_u32 s{{[0-9]+}}, s{{[0-9]+}}, memcmp@rel32@lo+4
; GCN: s_addc_u32 s{{[0-9]+}}, s{{[0-9]+}}, memcmp@rel32@hi+12
define amdgpu_kernel void @test_memcmp(i8 addrspace(1)* %x, i8 addrspace(1)* %y, i32* nocapture %p) #0 {
entry:
%cmp = tail call i32 @memcmp(i8 addrspace(1)* %x, i8 addrspace(1)* %y, i64 2)
store volatile i32 %cmp, i32 addrspace(1)* undef
ret void
}
; ERROR: error: <unknown>:0:0: in function test_memchr void (i8 addrspace(1)*, i32, i64): unsupported call to function memchr
; GCN: s_add_u32 s{{[0-9]+}}, s{{[0-9]+}}, memchr@rel32@lo+4
; GCN: s_addc_u32 s{{[0-9]+}}, s{{[0-9]+}}, memchr@rel32@hi+12
define amdgpu_kernel void @test_memchr(i8 addrspace(1)* %src, i32 %char, i64 %len) #0 {
%res = call i8 addrspace(1)* @memchr(i8 addrspace(1)* %src, i32 %char, i64 %len)
store volatile i8 addrspace(1)* %res, i8 addrspace(1)* addrspace(1)* undef
ret void
}
; ERROR: error: <unknown>:0:0: in function test_strcpy void (i8*, i8*): unsupported call to function strcpy
; GCN: s_add_u32 s{{[0-9]+}}, s{{[0-9]+}}, strcpy@rel32@lo+4
; GCN: s_addc_u32 s{{[0-9]+}}, s{{[0-9]+}}, strcpy@rel32@hi+12
define amdgpu_kernel void @test_strcpy(i8* %dst, i8* %src) #0 {
%res = call i8* @strcpy(i8* %dst, i8* %src)
store volatile i8* %res, i8* addrspace(1)* undef
ret void
}
; ERROR: error: <unknown>:0:0: in function test_strcmp void (i8*, i8*): unsupported call to function strcmp
; GCN: s_add_u32 s{{[0-9]+}}, s{{[0-9]+}}, strcmp@rel32@lo+4
; GCN: s_addc_u32 s{{[0-9]+}}, s{{[0-9]+}}, strcmp@rel32@hi+12
define amdgpu_kernel void @test_strcmp(i8* %src0, i8* %src1) #0 {
%res = call i32 @strcmp(i8* %src0, i8* %src1)
store volatile i32 %res, i32 addrspace(1)* undef
ret void
}
; ERROR: error: <unknown>:0:0: in function test_strlen void (i8*): unsupported call to function strlen
; GCN: s_add_u32 s{{[0-9]+}}, s{{[0-9]+}}, strlen@rel32@lo+4
; GCN: s_addc_u32 s{{[0-9]+}}, s{{[0-9]+}}, strlen@rel32@hi+12
define amdgpu_kernel void @test_strlen(i8* %src) #0 {
%res = call i32 @strlen(i8* %src)
store volatile i32 %res, i32 addrspace(1)* undef
ret void
}
; ERROR: error: <unknown>:0:0: in function test_strnlen void (i8*, i32): unsupported call to function strnlen
; GCN: s_add_u32 s{{[0-9]+}}, s{{[0-9]+}}, strnlen@rel32@lo+4
; GCN: s_addc_u32 s{{[0-9]+}}, s{{[0-9]+}}, strnlen@rel32@hi+12
define amdgpu_kernel void @test_strnlen(i8* %src, i32 %size) #0 {
%res = call i32 @strnlen(i8* %src, i32 %size)
store volatile i32 %res, i32 addrspace(1)* undef
ret void
}
attributes #0 = { nounwind }