| ; For ELFv2 ABI, we can avoid allocating the parameter area in the stack frame of the caller function |
| ; if all the arguments can be passed to the callee in registers. |
| ; For ELFv1 ABI, we always need to allocate the parameter area. |
| |
| ; Tests for ELFv2 ABI |
| ; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -target-abi elfv2 < %s | FileCheck %s -check-prefix=PPC64-ELFV2 |
| ; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -target-abi elfv2 < %s | FileCheck %s -check-prefix=PPC64-ELFV2 |
| |
| ; Tests for ELFv1 ABI |
| ; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -target-abi elfv1 < %s | FileCheck %s -check-prefix=PPC64-ELFV1 |
| ; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -target-abi elfv1 < %s | FileCheck %s -check-prefix=PPC64-ELFV1 |
| |
| ; If the callee has at most eight integer args, parameter area can be ommited for ELFv2 ABI. |
| |
| ; PPC64-ELFV2-LABEL: WithoutParamArea1: |
| ; PPC64-ELFV2-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1) |
| ; PPC64-ELFV2: stdu 1, -32(1) |
| ; PPC64-ELFV2: addi 1, 1, 32 |
| ; PPC64-ELFV2-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1) |
| ; PPC64-ELFV1-LABEL: WithoutParamArea1: |
| ; PPC64-ELFV1-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1) |
| ; PPC64-ELFV1: stdu 1, -112(1) |
| ; PPC64-ELFV1: addi 1, 1, 112 |
| ; PPC64-ELFV1-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1) |
| define signext i32 @WithoutParamArea1(i32 signext %a) local_unnamed_addr #0 { |
| entry: |
| %call = tail call signext i32 @onearg(i32 signext %a) #2 |
| ret i32 %call |
| } |
| |
| ; PPC64-ELFV2-LABEL: WithoutParamArea2: |
| ; PPC64-ELFV2-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1) |
| ; PPC64-ELFV2: stdu 1, -32(1) |
| ; PPC64-ELFV2: addi 1, 1, 32 |
| ; PPC64-ELFV2-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1) |
| ; PPC64-ELFV1-LABEL: WithoutParamArea2: |
| ; PPC64-ELFV1-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1) |
| ; PPC64-ELFV1: stdu 1, -112(1) |
| ; PPC64-ELFV1: addi 1, 1, 112 |
| ; PPC64-ELFV1-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1) |
| define signext i32 @WithoutParamArea2(i32 signext %a) local_unnamed_addr #0 { |
| entry: |
| %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 |
| ret i32 %call |
| } |
| |
| ; If the callee has more than eight integer args or variable number of args, |
| ; parameter area cannot be ommited even for ELFv2 ABI |
| |
| ; PPC64-ELFV2-LABEL: WithParamArea1: |
| ; PPC64-ELFV2-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1) |
| ; PPC64-ELFV2: stdu 1, -96(1) |
| ; PPC64-ELFV2: addi 1, 1, 96 |
| ; PPC64-ELFV2-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1) |
| ; PPC64-ELFV1-LABEL: WithParamArea1: |
| ; PPC64-ELFV1-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1) |
| ; PPC64-ELFV1: stdu 1, -112(1) |
| ; PPC64-ELFV1: addi 1, 1, 112 |
| ; PPC64-ELFV1-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1) |
| define signext i32 @WithParamArea1(i32 signext %a) local_unnamed_addr #0 { |
| entry: |
| %call = tail call signext i32 (i32, ...) @varargs(i32 signext %a, i32 signext %a) #2 |
| ret i32 %call |
| } |
| |
| ; PPC64-ELFV2-LABEL: WithParamArea2: |
| ; PPC64-ELFV2-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1) |
| ; PPC64-ELFV2: stdu 1, -112(1) |
| ; PPC64-ELFV2: addi 1, 1, 112 |
| ; PPC64-ELFV2-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1) |
| ; PPC64-ELFV1-LABEL: WithParamArea2: |
| ; PPC64-ELFV1-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1) |
| ; PPC64-ELFV1: stdu 1, -128(1) |
| ; PPC64-ELFV1: addi 1, 1, 128 |
| ; PPC64-ELFV1-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1) |
| define signext i32 @WithParamArea2(i32 signext %a) local_unnamed_addr #0 { |
| entry: |
| %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 |
| ret i32 %call |
| } |
| |
| declare signext i32 @onearg(i32 signext) local_unnamed_addr #1 |
| declare signext i32 @eightargs(i32 signext, i32 signext, i32 signext, i32 signext, i32 signext, i32 signext, i32 signext, i32 signext) local_unnamed_addr #1 |
| 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 |
| declare signext i32 @varargs(i32 signext, ...) local_unnamed_addr #1 |
| |