Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/CodeGen/PowerPC/stack-no-redzone.ll

@@ -1,146 +0,0 @@
-; Test that accesses of the stack remain within the range defined by R1,
-; i.e. that loads and stores only access the allocated stack. This does not
-; have to be the case when red zone is present.
-
-; Make sure that there is no red zone, i.e. ppc32 and SVR4 ABI.
-; RUN: llc -mtriple=powerpc--freebsd-elf < %s | FileCheck %s
-
-; There are two ways that the stack pointer can be adjusted in the prologue:
-; - by adding an immediate value:
-;     stwu r1, -imm(r1)
-; - by adding another register:
-;     stwux r1, rx, r1
-;
-; The restoring of the stack pointer can be done:
-; - by adding an immediate value to it:
-;     addi r1, r1, imm
-; - by copying the value from another register:
-;     mr r1, rx
-
-
-; Nothing (no special features).
-;
-; CHECK-LABEL: test_n:
-; CHECK-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1)
-; CHECK: stwu 1, -[[SIZE:[0-9]+]](1)
-; CHECK: addi 1, 1, [[SIZE]]
-; CHECK-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1)
-define i32 @test_n() local_unnamed_addr #0 {
-entry:
-  %t0 = tail call i32 bitcast (i32 (...)* @bar0 to i32 ()*)() #0
-  ret i32 %t0
-}
-
-; Aligned object on the stack.
-;
-; CHECK-LABEL: test_a:
-; CHECK-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1)
-; CHECK: stwux 1, 1, {{[0-9]+}}
-; CHECK: mr 1, {{[0-9]+}}
-; CHECK-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1)
-
-define i32 @test_a() local_unnamed_addr #0 {
-entry:
-  %t0 = alloca i32, align 128
-  %t1 = tail call i32 bitcast (i32 (...)* @bar1 to i32 (i32*)*)(i32* %t0) #0
-  ret i32 %t1
-}
-
-; Dynamic allocation on the stack.
-;
-; CHECK-LABEL: test_d:
-; CHECK-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1)
-; CHECK: stwu 1, -[[SIZE:[0-9]+]](1)
-; CHECK: mr 1, {{[0-9]+}}
-; CHECK-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1)
-define i32 @test_d(i32 %p0) local_unnamed_addr #0 {
-  %t0 = alloca i32, i32 %p0, align 4
-  %t1 = tail call i32 bitcast (i32 (...)* @bar1 to i32 (i32*)*)(i32* %t0) #0
-  ret i32 %t1
-}
-
-; Large stack (exceeds size of D-field).
-; CHECK-LABEL: test_s:
-; CHECK-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1)
-; CHECK: stwux 1, 1, {{[0-9]+}}
-; CHECK: mr 1, {{[0-9]+}}
-; CHECK-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1)
-define i32 @test_s(i32 %p0) local_unnamed_addr #0 {
-entry:
-  %t0 = alloca [16384 x i32]
-  %t1 = getelementptr [16384 x i32], [16384 x i32]* %t0, i32 0, i32 0
-  %t2 = tail call i32 bitcast (i32 (...)* @bar1 to i32 (i32*)*)(i32* %t1) #0
-  ret i32 %t2
-}
-
-; Combinations.
-
-; CHECK-LABEL: test_ad:
-; CHECK-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1)
-; CHECK: stwux 1, 1, {{[0-9]+}}
-; CHECK: mr 1, {{[0-9]+}}
-; CHECK-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1)
-define i32 @test_ad(i32 %p0) local_unnamed_addr #0 {
-  %t0 = alloca i32, align 128
-  %t1 = alloca i32, i32 %p0, align 4
-  %t2 = tail call i32 bitcast (i32 (...)* @bar1 to i32 (i32*)*)(i32* %t0) #0
-  %t3 = tail call i32 bitcast (i32 (...)* @bar1 to i32 (i32*)*)(i32* %t1) #0
-  %t4 = add i32 %t2, %t3
-  ret i32 %t4
-}
-
-; CHECK-LABEL: test_as:
-; CHECK-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1)
-; CHECK: stwux 1, 1, {{[0-9]+}}
-; CHECK: mr 1, {{[0-9]+}}
-; CHECK-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1)
-define i32 @test_as() local_unnamed_addr #0 {
-  %t0 = alloca i32, align 128
-  %t1 = alloca [16384 x i32]
-  %t2 = tail call i32 bitcast (i32 (...)* @bar1 to i32 (i32*)*)(i32* %t0) #0
-  %t3 = getelementptr [16384 x i32], [16384 x i32]* %t1, i32 0, i32 0
-  %t4 = tail call i32 bitcast (i32 (...)* @bar1 to i32 (i32*)*)(i32* %t3) #0
-  %t5 = add i32 %t2, %t4
-  ret i32 %t5
-}
-
-; CHECK-LABEL: test_ds:
-; CHECK-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1)
-; CHECK: stwux 1, 1, {{[0-9]+}}
-; CHECK: mr 1, {{[0-9]+}}
-; CHECK-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1)
-define i32 @test_ds(i32 %p0) local_unnamed_addr #0 {
-  %t0 = alloca i32, i32 %p0, align 4
-  %t1 = alloca [16384 x i32]
-  %t2 = tail call i32 bitcast (i32 (...)* @bar1 to i32 (i32*)*)(i32* %t0) #0
-  %t3 = getelementptr [16384 x i32], [16384 x i32]* %t1, i32 0, i32 0
-  %t4 = tail call i32 bitcast (i32 (...)* @bar1 to i32 (i32*)*)(i32* %t3) #0
-  %t5 = add i32 %t2, %t4
-  ret i32 %t5
-}
-
-; CHECK-LABEL: test_ads:
-; CHECK-NOT: stw {{[0-9]+}}, -{{[0-9]+}}(1)
-; CHECK: stwux 1, 1, {{[0-9]+}}
-; CHECK: mr 1, {{[0-9]+}}
-; CHECK-NOT: lwz {{[0-9]+}}, -{{[0-9]+}}(1)
-define i32 @test_ads(i32 %p0) local_unnamed_addr #0 {
-  %t0 = alloca i32, align 128
-  %t1 = alloca i32, i32 %p0, align 4
-  %t2 = alloca [16384 x i32]
-
-  %t3 = tail call i32 bitcast (i32 (...)* @bar1 to i32 (i32*)*)(i32* %t0) #0
-  %t4 = tail call i32 bitcast (i32 (...)* @bar1 to i32 (i32*)*)(i32* %t1) #0
-  %t5 = add i32 %t3, %t4
-
-  %t6 = getelementptr [16384 x i32], [16384 x i32]* %t2, i32 0, i32 0
-  %t7 = tail call i32 bitcast (i32 (...)* @bar1 to i32 (i32*)*)(i32* %t6) #0
-  %t8 = add i32 %t5, %t7
-  ret i32 %t7
-}
-
-
-declare i32 @bar0(...) local_unnamed_addr #0
-declare i32 @bar1(...) local_unnamed_addr #0
-
-attributes #0 = { nounwind }