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llvm-project/llvm/test/CodeGen/AMDGPU/cf-stack-bug.ll

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Don't depend on the interleaving of stdout and stderr. That can change as we change the buffering. llvm-svn: 239602
2015-06-12 20:20:03 +08:00
; RUN: llc -march=r600 -mcpu=redwood -debug-only=r600cf %s -o - 2>%t | FileCheck %s --check-prefix=FUNC
; RUN: FileCheck --check-prefix=BUG64 %s < %t
; RUN: llc -march=r600 -mcpu=sumo -debug-only=r600cf %s -o - 2>%t | FileCheck %s --check-prefix=FUNC
; RUN: FileCheck --check-prefix=BUG64 %s < %t
; RUN: llc -march=r600 -mcpu=barts -debug-only=r600cf %s -o - 2>%t | FileCheck %s --check-prefix=FUNC
; RUN: FileCheck --check-prefix=BUG64 %s < %t
; RUN: llc -march=r600 -mcpu=turks -debug-only=r600cf %s -o - 2>%t | FileCheck %s --check-prefix=FUNC
; RUN: FileCheck --check-prefix=BUG64 %s < %t
; RUN: llc -march=r600 -mcpu=caicos -debug-only=r600cf %s -o - 2>%t | FileCheck %s --check-prefix=FUNC
; RUN: FileCheck --check-prefix=BUG64 %s < %t
; RUN: llc -march=r600 -mcpu=cedar -debug-only=r600cf %s -o - 2>%t | FileCheck %s --check-prefix=FUNC
; RUN: FileCheck --check-prefix=BUG32 %s < %t
; RUN: llc -march=r600 -mcpu=juniper -debug-only=r600cf %s -o - 2>%t | FileCheck %s --check-prefix=FUNC
; RUN: FileCheck --check-prefix=NOBUG %s < %t
; RUN: llc -march=r600 -mcpu=cypress -debug-only=r600cf %s -o - 2>%t | FileCheck %s --check-prefix=FUNC
; RUN: FileCheck --check-prefix=NOBUG %s < %t
; RUN: llc -march=r600 -mcpu=cayman -debug-only=r600cf %s -o - 2>%t | FileCheck %s --check-prefix=FUNC
; RUN: FileCheck --check-prefix=NOBUG %s < %t
R600: Recommit 199842: Add work-around for the CF stack entry HW bug The unit test is now disabled on non-asserts builds. The CF stack can be corrupted if you use CF_ALU_PUSH_BEFORE, CF_ALU_ELSE_AFTER, CF_ALU_BREAK, or CF_ALU_CONTINUE when the number of sub-entries on the stack is greater than or equal to the stack entry size and sub-entries modulo 4 is either 0 or 3 (on cedar the bug is present when number of sub-entries module 8 is either 7 or 0) We choose to be conservative and always apply the work-around when the number of sub-enries is greater than or equal to the stack entry size, so that we can safely over-allocate the stack when we are unsure of the stack allocation rules. reviewed-by: Vincent Lejeune <vljn at ovi.com> llvm-svn: 199905
2014-01-24 00:18:02 +08:00
; REQUIRES: asserts
; We are currently allocating 2 extra sub-entries on Evergreen / NI for
; non-WQM push instructions if we change this to 1, then we will need to
; add one level of depth to each of these tests.
; BUG64-NOT: Applying bug work-around
; BUG32-NOT: Applying bug work-around
; NOBUG-NOT: Applying bug work-around
R600: Call EmitFunctionHeader() in the AsmPrinter to populate the ELF symbol table llvm-svn: 218776
2014-10-02 01:15:17 +08:00
; FUNC-LABEL: {{^}}nested3:
AMDGPU: Mark all unspecified CC functions in tests as amdgpu_kernel Currently the default C calling convention functions are treated the same as compute kernels. Make this explicit so the default calling convention can be changed to a non-kernel. Converted with perl -pi -e 's/define void/define amdgpu_kernel void/' on the relevant test directories (and undoing in one place that actually wanted a non-kernel). llvm-svn: 298444
2017-03-22 05:39:51 +08:00
define amdgpu_kernel void @nested3(i32 addrspace(1)* %out, i32 %cond) {
R600: Recommit 199842: Add work-around for the CF stack entry HW bug The unit test is now disabled on non-asserts builds. The CF stack can be corrupted if you use CF_ALU_PUSH_BEFORE, CF_ALU_ELSE_AFTER, CF_ALU_BREAK, or CF_ALU_CONTINUE when the number of sub-entries on the stack is greater than or equal to the stack entry size and sub-entries modulo 4 is either 0 or 3 (on cedar the bug is present when number of sub-entries module 8 is either 7 or 0) We choose to be conservative and always apply the work-around when the number of sub-enries is greater than or equal to the stack entry size, so that we can safely over-allocate the stack when we are unsure of the stack allocation rules. reviewed-by: Vincent Lejeune <vljn at ovi.com> llvm-svn: 199905
2014-01-24 00:18:02 +08:00
entry:
%0 = icmp sgt i32 %cond, 0
br i1 %0, label %if.1, label %end
if.1:
%1 = icmp sgt i32 %cond, 10
br i1 %1, label %if.2, label %if.store.1
if.store.1:
store i32 1, i32 addrspace(1)* %out
br label %end
if.2:
%2 = icmp sgt i32 %cond, 20
br i1 %2, label %if.3, label %if.2.store
if.2.store:
store i32 2, i32 addrspace(1)* %out
br label %end
if.3:
store i32 3, i32 addrspace(1)* %out
br label %end
end:
ret void
}
; BUG64: Applying bug work-around
; BUG32-NOT: Applying bug work-around
; NOBUG-NOT: Applying bug work-around
R600: Call EmitFunctionHeader() in the AsmPrinter to populate the ELF symbol table llvm-svn: 218776
2014-10-02 01:15:17 +08:00
; FUNC-LABEL: {{^}}nested4:
AMDGPU: Mark all unspecified CC functions in tests as amdgpu_kernel Currently the default C calling convention functions are treated the same as compute kernels. Make this explicit so the default calling convention can be changed to a non-kernel. Converted with perl -pi -e 's/define void/define amdgpu_kernel void/' on the relevant test directories (and undoing in one place that actually wanted a non-kernel). llvm-svn: 298444
2017-03-22 05:39:51 +08:00
define amdgpu_kernel void @nested4(i32 addrspace(1)* %out, i32 %cond) {
R600: Recommit 199842: Add work-around for the CF stack entry HW bug The unit test is now disabled on non-asserts builds. The CF stack can be corrupted if you use CF_ALU_PUSH_BEFORE, CF_ALU_ELSE_AFTER, CF_ALU_BREAK, or CF_ALU_CONTINUE when the number of sub-entries on the stack is greater than or equal to the stack entry size and sub-entries modulo 4 is either 0 or 3 (on cedar the bug is present when number of sub-entries module 8 is either 7 or 0) We choose to be conservative and always apply the work-around when the number of sub-enries is greater than or equal to the stack entry size, so that we can safely over-allocate the stack when we are unsure of the stack allocation rules. reviewed-by: Vincent Lejeune <vljn at ovi.com> llvm-svn: 199905
2014-01-24 00:18:02 +08:00
entry:
%0 = icmp sgt i32 %cond, 0
br i1 %0, label %if.1, label %end
if.1:
%1 = icmp sgt i32 %cond, 10
br i1 %1, label %if.2, label %if.1.store
if.1.store:
store i32 1, i32 addrspace(1)* %out
br label %end
if.2:
%2 = icmp sgt i32 %cond, 20
br i1 %2, label %if.3, label %if.2.store
if.2.store:
store i32 2, i32 addrspace(1)* %out
br label %end
if.3:
%3 = icmp sgt i32 %cond, 30
br i1 %3, label %if.4, label %if.3.store
if.3.store:
store i32 3, i32 addrspace(1)* %out
br label %end
if.4:
store i32 4, i32 addrspace(1)* %out
br label %end
end:
ret void
}
; BUG64: Applying bug work-around
; BUG32-NOT: Applying bug work-around
; NOBUG-NOT: Applying bug work-around
R600: Call EmitFunctionHeader() in the AsmPrinter to populate the ELF symbol table llvm-svn: 218776
2014-10-02 01:15:17 +08:00
; FUNC-LABEL: {{^}}nested7:
AMDGPU: Mark all unspecified CC functions in tests as amdgpu_kernel Currently the default C calling convention functions are treated the same as compute kernels. Make this explicit so the default calling convention can be changed to a non-kernel. Converted with perl -pi -e 's/define void/define amdgpu_kernel void/' on the relevant test directories (and undoing in one place that actually wanted a non-kernel). llvm-svn: 298444
2017-03-22 05:39:51 +08:00
define amdgpu_kernel void @nested7(i32 addrspace(1)* %out, i32 %cond) {
R600: Recommit 199842: Add work-around for the CF stack entry HW bug The unit test is now disabled on non-asserts builds. The CF stack can be corrupted if you use CF_ALU_PUSH_BEFORE, CF_ALU_ELSE_AFTER, CF_ALU_BREAK, or CF_ALU_CONTINUE when the number of sub-entries on the stack is greater than or equal to the stack entry size and sub-entries modulo 4 is either 0 or 3 (on cedar the bug is present when number of sub-entries module 8 is either 7 or 0) We choose to be conservative and always apply the work-around when the number of sub-enries is greater than or equal to the stack entry size, so that we can safely over-allocate the stack when we are unsure of the stack allocation rules. reviewed-by: Vincent Lejeune <vljn at ovi.com> llvm-svn: 199905
2014-01-24 00:18:02 +08:00
entry:
%0 = icmp sgt i32 %cond, 0
br i1 %0, label %if.1, label %end
if.1:
%1 = icmp sgt i32 %cond, 10
br i1 %1, label %if.2, label %if.1.store
if.1.store:
store i32 1, i32 addrspace(1)* %out
br label %end
if.2:
%2 = icmp sgt i32 %cond, 20
br i1 %2, label %if.3, label %if.2.store
if.2.store:
store i32 2, i32 addrspace(1)* %out
br label %end
if.3:
%3 = icmp sgt i32 %cond, 30
br i1 %3, label %if.4, label %if.3.store
if.3.store:
store i32 3, i32 addrspace(1)* %out
br label %end
if.4:
%4 = icmp sgt i32 %cond, 40
br i1 %4, label %if.5, label %if.4.store
if.4.store:
store i32 4, i32 addrspace(1)* %out
br label %end
if.5:
%5 = icmp sgt i32 %cond, 50
br i1 %5, label %if.6, label %if.5.store
if.5.store:
store i32 5, i32 addrspace(1)* %out
br label %end
if.6:
%6 = icmp sgt i32 %cond, 60
br i1 %6, label %if.7, label %if.6.store
if.6.store:
store i32 6, i32 addrspace(1)* %out
br label %end
if.7:
store i32 7, i32 addrspace(1)* %out
br label %end
end:
ret void
}
; BUG64: Applying bug work-around
; BUG32: Applying bug work-around
; NOBUG-NOT: Applying bug work-around
R600: Call EmitFunctionHeader() in the AsmPrinter to populate the ELF symbol table llvm-svn: 218776
2014-10-02 01:15:17 +08:00
; FUNC-LABEL: {{^}}nested8:
AMDGPU: Mark all unspecified CC functions in tests as amdgpu_kernel Currently the default C calling convention functions are treated the same as compute kernels. Make this explicit so the default calling convention can be changed to a non-kernel. Converted with perl -pi -e 's/define void/define amdgpu_kernel void/' on the relevant test directories (and undoing in one place that actually wanted a non-kernel). llvm-svn: 298444
2017-03-22 05:39:51 +08:00
define amdgpu_kernel void @nested8(i32 addrspace(1)* %out, i32 %cond) {
R600: Recommit 199842: Add work-around for the CF stack entry HW bug The unit test is now disabled on non-asserts builds. The CF stack can be corrupted if you use CF_ALU_PUSH_BEFORE, CF_ALU_ELSE_AFTER, CF_ALU_BREAK, or CF_ALU_CONTINUE when the number of sub-entries on the stack is greater than or equal to the stack entry size and sub-entries modulo 4 is either 0 or 3 (on cedar the bug is present when number of sub-entries module 8 is either 7 or 0) We choose to be conservative and always apply the work-around when the number of sub-enries is greater than or equal to the stack entry size, so that we can safely over-allocate the stack when we are unsure of the stack allocation rules. reviewed-by: Vincent Lejeune <vljn at ovi.com> llvm-svn: 199905
2014-01-24 00:18:02 +08:00
entry:
%0 = icmp sgt i32 %cond, 0
br i1 %0, label %if.1, label %end
if.1:
%1 = icmp sgt i32 %cond, 10
br i1 %1, label %if.2, label %if.1.store
if.1.store:
store i32 1, i32 addrspace(1)* %out
br label %end
if.2:
%2 = icmp sgt i32 %cond, 20
br i1 %2, label %if.3, label %if.2.store
if.2.store:
store i32 2, i32 addrspace(1)* %out
br label %end
if.3:
%3 = icmp sgt i32 %cond, 30
br i1 %3, label %if.4, label %if.3.store
if.3.store:
store i32 3, i32 addrspace(1)* %out
br label %end
if.4:
%4 = icmp sgt i32 %cond, 40
br i1 %4, label %if.5, label %if.4.store
if.4.store:
store i32 4, i32 addrspace(1)* %out
br label %end
if.5:
%5 = icmp sgt i32 %cond, 50
br i1 %5, label %if.6, label %if.5.store
if.5.store:
store i32 5, i32 addrspace(1)* %out
br label %end
if.6:
%6 = icmp sgt i32 %cond, 60
br i1 %6, label %if.7, label %if.6.store
if.6.store:
store i32 6, i32 addrspace(1)* %out
br label %end
if.7:
%7 = icmp sgt i32 %cond, 70
br i1 %7, label %if.8, label %if.7.store
if.7.store:
store i32 7, i32 addrspace(1)* %out
br label %end
if.8:
store i32 8, i32 addrspace(1)* %out
br label %end
end:
ret void
}