; RUN: llc < %s -march=x86 -asm-verbose=false | FileCheck %s -check-prefix=32 ; RUN: llc < %s -march=x86-64 -asm-verbose=false | FileCheck %s -check-prefix=64 define void @t1(i32 %x) nounwind ssp { entry: ; 32: t1: ; 32: jmp {{_?}}foo ; 64: t1: ; 64: jmp {{_?}}foo tail call void @foo() nounwind ret void } declare void @foo() define void @t2() nounwind ssp { entry: ; 32: t2: ; 32: jmp {{_?}}foo2 ; 64: t2: ; 64: jmp {{_?}}foo2 %0 = tail call i32 @foo2() nounwind ret void } declare i32 @foo2() define void @t3() nounwind ssp { entry: ; 32: t3: ; 32: jmp {{_?}}foo3 ; 64: t3: ; 64: jmp {{_?}}foo3 %0 = tail call i32 @foo3() nounwind ret void } declare i32 @foo3() define void @t4(void (i32)* nocapture %x) nounwind ssp { entry: ; 32: t4: ; 32: call * ; FIXME: gcc can generate a tailcall for this. But it's tricky. ; 64: t4: ; 64-NOT: call ; 64: jmpq * tail call void %x(i32 0) nounwind ret void } define void @t5(void ()* nocapture %x) nounwind ssp { entry: ; 32: t5: ; 32-NOT: call ; 32: jmpl * ; 64: t5: ; 64-NOT: call ; 64: jmpq * tail call void %x() nounwind ret void } define i32 @t6(i32 %x) nounwind ssp { entry: ; 32: t6: ; 32: call {{_?}}t6 ; 32: call {{_?}}bar ; 64: t6: ; 64: jmp {{_?}}t6 ; 64: jmp {{_?}}bar %0 = icmp slt i32 %x, 10 br i1 %0, label %bb, label %bb1 bb: %1 = add nsw i32 %x, -1 %2 = tail call i32 @t6(i32 %1) nounwind ssp ret i32 %2 bb1: %3 = tail call i32 @bar(i32 %x) nounwind ret i32 %3 } declare i32 @bar(i32)