1 ; Test general-dynamic TLS access optimizations. 2 ; 3 ; If we access two different TLS variables, we need two calls to 4 ; __tls_get_offset, but should load _GLOBAL_OFFSET_TABLE only once. 5 ; 6 ; RUN: llc < %s -mcpu=z10 -mtriple=s390x-linux-gnu -relocation-model=pic | grep "__tls_get_offset" | count 2 7 ; RUN: llc < %s -mcpu=z10 -mtriple=s390x-linux-gnu -relocation-model=pic | grep "_GLOBAL_OFFSET_TABLE_" | count 1 8 9 @x = thread_local global i32 0 10 @y = thread_local global i32 0 11 12 define i32 @foo() { 13 %valx = load i32, i32* @x 14 %valy = load i32, i32* @y 15 %add = add nsw i32 %valx, %valy 16 ret i32 %add 17 } 18
