-; RUN: llc < %s -march=ppc64 | FileCheck %s
+; RUN: llc < %s -march=ppc64 -mcpu=pwr7 | FileCheck %s
target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
; Calls to local function does not require the TOC restore 'nop'
define void @test_direct() nounwind readnone {
-; CHECK: test_direct:
+; CHECK-LABEL: test_direct:
tail call void @foo() nounwind
; CHECK: bl foo
; CHECK-NOT: nop
; Calls to weak function requires a TOC restore 'nop' because they
; may be overridden in a different module.
define void @test_weak() nounwind readnone {
-; CHECK: test_weak:
+; CHECK-LABEL: test_weak:
tail call void @foo_weak() nounwind
; CHECK: bl foo
; CHECK-NEXT: nop
; Indirect calls requires a full stub creation
define void @test_indirect(void ()* nocapture %fp) nounwind {
-; CHECK: test_indirect:
+; CHECK-LABEL: test_indirect:
tail call void %fp() nounwind
; CHECK: ld [[FP:[0-9]+]], 0(3)
; CHECK: ld 11, 16(3)
ret void
}
-; Absolute vales should be have the TOC restore 'nop'
+; Absolute values must use the regular indirect call sequence
+; The main purpose of this test is to ensure that BLA is not
+; used on 64-bit SVR4 (as e.g. on Darwin).
define void @test_abs() nounwind {
-; CHECK: test_abs:
+; CHECK-LABEL: test_abs:
tail call void inttoptr (i64 1024 to void ()*)() nounwind
-; CHECK: bla 1024
-; CHECK-NEXT: nop
+; CHECK: ld [[FP:[0-9]+]], 1024(0)
+; CHECK: ld 11, 1040(0)
+; CHECK: ld 2, 1032(0)
+; CHECK-NEXT: mtctr [[FP]]
+; CHECK-NEXT: bctrl
+; CHECK-NEXT: ld 2, 40(1)
ret void
}
; External functions call should also have a 'nop'
define double @test_external(double %x) nounwind {
-; CHECK: test_external:
+; CHECK-LABEL: test_external:
%call = tail call double @sin(double %x) nounwind
; CHECK: bl sin
; CHECK-NEXT: nop
ret double %call
}
+
+; The 'ld 2, 40(1)' really must always come directly after the bctrl to make
+; the unwinding code in libgcc happy.
+@g = external global void ()*
+declare void @h(i64)
+define void @test_indir_toc_reload(i64 %x) {
+ %1 = load void ()*, void ()** @g
+ call void %1()
+ call void @h(i64 %x)
+ ret void
+
+; CHECK-LABEL: @test_indir_toc_reload
+; CHECK: bctrl
+; CHECK-NEXT: ld 2, 40(1)
+; CHECK: blr
+}
+