1 ; For ELFv2 ABI, we can avoid allocating the parameter area in the stack frame of the caller function
2 ; if all the arguments can be passed to the callee in registers.
3 ; For ELFv1 ABI, we always need to allocate the parameter area.
6 ; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -target-abi elfv2 < %s | FileCheck %s -check-prefix=PPC64-ELFV2
7 ; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -target-abi elfv2 < %s | FileCheck %s -check-prefix=PPC64-ELFV2
10 ; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -target-abi elfv1 < %s | FileCheck %s -check-prefix=PPC64-ELFV1
11 ; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -target-abi elfv1 < %s | FileCheck %s -check-prefix=PPC64-ELFV1
13 ; If the callee has at most eight integer args, parameter area can be ommited for ELFv2 ABI.
15 ; PPC64-ELFV2-LABEL: WithoutParamArea1:
16 ; PPC64-ELFV2-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1)
17 ; PPC64-ELFV2: stdu 1, -32(1)
18 ; PPC64-ELFV2: addi 1, 1, 32
19 ; PPC64-ELFV2-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1)
20 ; PPC64-ELFV1-LABEL: WithoutParamArea1:
21 ; PPC64-ELFV1-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1)
22 ; PPC64-ELFV1: stdu 1, -112(1)
23 ; PPC64-ELFV1: addi 1, 1, 112
24 ; PPC64-ELFV1-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1)
25 define signext i32 @WithoutParamArea1(i32 signext %a) local_unnamed_addr #0 {
27 %call = tail call signext i32 @onearg(i32 signext %a) #2
31 ; PPC64-ELFV2-LABEL: WithoutParamArea2:
32 ; PPC64-ELFV2-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1)
33 ; PPC64-ELFV2: stdu 1, -32(1)
34 ; PPC64-ELFV2: addi 1, 1, 32
35 ; PPC64-ELFV2-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1)
36 ; PPC64-ELFV1-LABEL: WithoutParamArea2:
37 ; PPC64-ELFV1-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1)
38 ; PPC64-ELFV1: stdu 1, -112(1)
39 ; PPC64-ELFV1: addi 1, 1, 112
40 ; PPC64-ELFV1-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1)
41 define signext i32 @WithoutParamArea2(i32 signext %a) local_unnamed_addr #0 {
43 %call = tail call signext i32 @eightargs(i32 signext %a, i32 signext %a, i32 signext %a, i32 signext %a, i32 signext %a, i32 signext %a, i32 signext %a, i32 signext %a) #2
47 ; If the callee has more than eight integer args or variable number of args,
48 ; parameter area cannot be ommited even for ELFv2 ABI
50 ; PPC64-ELFV2-LABEL: WithParamArea1:
51 ; PPC64-ELFV2-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1)
52 ; PPC64-ELFV2: stdu 1, -96(1)
53 ; PPC64-ELFV2: addi 1, 1, 96
54 ; PPC64-ELFV2-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1)
55 ; PPC64-ELFV1-LABEL: WithParamArea1:
56 ; PPC64-ELFV1-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1)
57 ; PPC64-ELFV1: stdu 1, -112(1)
58 ; PPC64-ELFV1: addi 1, 1, 112
59 ; PPC64-ELFV1-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1)
60 define signext i32 @WithParamArea1(i32 signext %a) local_unnamed_addr #0 {
62 %call = tail call signext i32 (i32, ...) @varargs(i32 signext %a, i32 signext %a) #2
66 ; PPC64-ELFV2-LABEL: WithParamArea2:
67 ; PPC64-ELFV2-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1)
68 ; PPC64-ELFV2: stdu 1, -112(1)
69 ; PPC64-ELFV2: addi 1, 1, 112
70 ; PPC64-ELFV2-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1)
71 ; PPC64-ELFV1-LABEL: WithParamArea2:
72 ; PPC64-ELFV1-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1)
73 ; PPC64-ELFV1: stdu 1, -128(1)
74 ; PPC64-ELFV1: addi 1, 1, 128
75 ; PPC64-ELFV1-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1)
76 define signext i32 @WithParamArea2(i32 signext %a) local_unnamed_addr #0 {
78 %call = tail call signext i32 @nineargs(i32 signext %a, i32 signext %a, i32 signext %a, i32 signext %a, i32 signext %a, i32 signext %a, i32 signext %a, i32 signext %a, i32 signext %a) #2
82 declare signext i32 @onearg(i32 signext) local_unnamed_addr #1
83 declare signext i32 @eightargs(i32 signext, i32 signext, i32 signext, i32 signext, i32 signext, i32 signext, i32 signext, i32 signext) local_unnamed_addr #1
84 declare signext i32 @nineargs(i32 signext, i32 signext, i32 signext, i32 signext, i32 signext, i32 signext, i32 signext, i32 signext, i32 signext) local_unnamed_addr #1
85 declare signext i32 @varargs(i32 signext, ...) local_unnamed_addr #1