tinygo-org/tinygo
1
0
Fork 0
mirror of https://github.com/tinygo-org/tinygo.git synced 2026-08-16 02:33:28 +00:00
Code Issues Packages Projects Releases 6 Wiki Activity

compiler: add alloc attributes to runtime.alloc

Browse Source 
This gives a small improvement now, and is needed to be able to use the
Heap2Stack transform that's available in the Attributor pass. This
Heap2Stack transform could replace our custom OptimizeAllocs pass.

Most of the changes are just IR that changed, the actual change is
relatively small.

To give an example of why this is useful, here is the code size before
this change:

    $ tinygo build -o test -size=short ./testdata/stdlib.go
       code    data     bss |   flash     ram
      95620    1812     968 |   97432    2780

    $ tinygo build -o test -size=short ./testdata/stdlib.go
       code    data     bss |   flash     ram
      95380    1812     968 |   97192    2780

That's a 0.25% reduction. Not a whole lot, but nice for such a small
patch.
This commit is contained in:
Ayke van Laethem
2023-03-11 20:57:40 +01:00
committed by Ron Evans
parent 5ed0cecf0d
commit f180339d6b
17 changed files with 504 additions and 447 deletions
Download Patch File Download Diff File Expand all files Collapse all files
compiler/testdata/defer-cortex-m-qemu.ll
Vendored
+30 -28
View File
@@ -7,6 +7,7 @@ target triple = "thumbv7m-unknown-unknown-eabi"
%runtime._interface = type { ptr, ptr }
%runtime._defer = type { i32, ptr }
; Function Attrs: allockind("alloc,zeroed") allocsize(0)
declare noalias nonnull ptr @runtime.alloc(i32, ptr, ptr) #0
; Function Attrs: nounwind
@@ -15,7 +16,7 @@ entry:
ret void
}
declare void @main.external(ptr) #0
declare void @main.external(ptr) #2
; Function Attrs: nounwind
define hidden void @main.deferSimple(ptr %context) unnamed_addr #1 {
@@ -25,17 +26,17 @@ entry:
store ptr null, ptr %deferPtr, align 4
%deferframe.buf = alloca %runtime.deferFrame, align 4
%0 = call ptr @llvm.stacksave()
call void @runtime.setupDeferFrame(ptr nonnull %deferframe.buf, ptr %0, ptr undef) #3
call void @runtime.setupDeferFrame(ptr nonnull %deferframe.buf, ptr %0, ptr undef) #4
store i32 0, ptr %defer.alloca, align 4
%defer.alloca.repack15 = getelementptr inbounds { i32, ptr }, ptr %defer.alloca, i32 0, i32 1
store ptr null, ptr %defer.alloca.repack15, align 4
store ptr %defer.alloca, ptr %deferPtr, align 4
%setjmp = call i32 asm "\0Amovs r0, #0\0Amov r2, pc\0Astr r2, [r1, #4]", "={r0},{r1},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{lr},~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{cpsr},~{memory}"(ptr nonnull %deferframe.buf) #4
%setjmp = call i32 asm "\0Amovs r0, #0\0Amov r2, pc\0Astr r2, [r1, #4]", "={r0},{r1},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{lr},~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{cpsr},~{memory}"(ptr nonnull %deferframe.buf) #5
%setjmp.result = icmp eq i32 %setjmp, 0
br i1 %setjmp.result, label %1, label %lpad
1: ; preds = %entry
call void @main.external(ptr undef) #3
call void @main.external(ptr undef) #4
br label %rundefers.loophead
rundefers.loophead: ; preds = %3, %1
@@ -53,7 +54,7 @@ rundefers.loop: ; preds = %rundefers.loophead
]
rundefers.callback0: ; preds = %rundefers.loop
%setjmp1 = call i32 asm "\0Amovs r0, #0\0Amov r2, pc\0Astr r2, [r1, #4]", "={r0},{r1},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{lr},~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{cpsr},~{memory}"(ptr nonnull %deferframe.buf) #4
%setjmp1 = call i32 asm "\0Amovs r0, #0\0Amov r2, pc\0Astr r2, [r1, #4]", "={r0},{r1},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{lr},~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{cpsr},~{memory}"(ptr nonnull %deferframe.buf) #5
%setjmp.result2 = icmp eq i32 %setjmp1, 0
br i1 %setjmp.result2, label %3, label %lpad
@@ -65,11 +66,11 @@ rundefers.default: ; preds = %rundefers.loop
unreachable
rundefers.end: ; preds = %rundefers.loophead
call void @runtime.destroyDeferFrame(ptr nonnull %deferframe.buf, ptr undef) #3
call void @runtime.destroyDeferFrame(ptr nonnull %deferframe.buf, ptr undef) #4
ret void
recover: ; preds = %rundefers.end3
call void @runtime.destroyDeferFrame(ptr nonnull %deferframe.buf, ptr undef) #3
call void @runtime.destroyDeferFrame(ptr nonnull %deferframe.buf, ptr undef) #4
ret void
lpad: ; preds = %rundefers.callback012, %rundefers.callback0, %entry
@@ -90,7 +91,7 @@ rundefers.loop5: ; preds = %rundefers.loophead6
]
rundefers.callback012: ; preds = %rundefers.loop5
%setjmp13 = call i32 asm "\0Amovs r0, #0\0Amov r2, pc\0Astr r2, [r1, #4]", "={r0},{r1},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{lr},~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{cpsr},~{memory}"(ptr nonnull %deferframe.buf) #4
%setjmp13 = call i32 asm "\0Amovs r0, #0\0Amov r2, pc\0Astr r2, [r1, #4]", "={r0},{r1},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{lr},~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{cpsr},~{memory}"(ptr nonnull %deferframe.buf) #5
%setjmp.result14 = icmp eq i32 %setjmp13, 0
br i1 %setjmp.result14, label %5, label %lpad
@@ -106,20 +107,20 @@ rundefers.end3: ; preds = %rundefers.loophead6
}
; Function Attrs: nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave() #2
declare ptr @llvm.stacksave() #3
declare void @runtime.setupDeferFrame(ptr dereferenceable_or_null(24), ptr, ptr) #0
declare void @runtime.setupDeferFrame(ptr dereferenceable_or_null(24), ptr, ptr) #2
; Function Attrs: nounwind
define internal void @"main.deferSimple$1"(ptr %context) unnamed_addr #1 {
entry:
call void @runtime.printint32(i32 3, ptr undef) #3
call void @runtime.printint32(i32 3, ptr undef) #4
ret void
}
declare void @runtime.destroyDeferFrame(ptr dereferenceable_or_null(24), ptr) #0
declare void @runtime.destroyDeferFrame(ptr dereferenceable_or_null(24), ptr) #2
declare void @runtime.printint32(i32, ptr) #0
declare void @runtime.printint32(i32, ptr) #2
; Function Attrs: nounwind
define hidden void @main.deferMultiple(ptr %context) unnamed_addr #1 {
@@ -130,7 +131,7 @@ entry:
store ptr null, ptr %deferPtr, align 4
%deferframe.buf = alloca %runtime.deferFrame, align 4
%0 = call ptr @llvm.stacksave()
call void @runtime.setupDeferFrame(ptr nonnull %deferframe.buf, ptr %0, ptr undef) #3
call void @runtime.setupDeferFrame(ptr nonnull %deferframe.buf, ptr %0, ptr undef) #4
store i32 0, ptr %defer.alloca, align 4
%defer.alloca.repack22 = getelementptr inbounds { i32, ptr }, ptr %defer.alloca, i32 0, i32 1
store ptr null, ptr %defer.alloca.repack22, align 4
@@ -139,12 +140,12 @@ entry:
%defer.alloca2.repack23 = getelementptr inbounds { i32, ptr }, ptr %defer.alloca2, i32 0, i32 1
store ptr %defer.alloca, ptr %defer.alloca2.repack23, align 4
store ptr %defer.alloca2, ptr %deferPtr, align 4
%setjmp = call i32 asm "\0Amovs r0, #0\0Amov r2, pc\0Astr r2, [r1, #4]", "={r0},{r1},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{lr},~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{cpsr},~{memory}"(ptr nonnull %deferframe.buf) #4
%setjmp = call i32 asm "\0Amovs r0, #0\0Amov r2, pc\0Astr r2, [r1, #4]", "={r0},{r1},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{lr},~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{cpsr},~{memory}"(ptr nonnull %deferframe.buf) #5
%setjmp.result = icmp eq i32 %setjmp, 0
br i1 %setjmp.result, label %1, label %lpad
1: ; preds = %entry
call void @main.external(ptr undef) #3
call void @main.external(ptr undef) #4
br label %rundefers.loophead
rundefers.loophead: ; preds = %4, %3, %1
@@ -163,7 +164,7 @@ rundefers.loop: ; preds = %rundefers.loophead
]
rundefers.callback0: ; preds = %rundefers.loop
%setjmp3 = call i32 asm "\0Amovs r0, #0\0Amov r2, pc\0Astr r2, [r1, #4]", "={r0},{r1},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{lr},~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{cpsr},~{memory}"(ptr nonnull %deferframe.buf) #4
%setjmp3 = call i32 asm "\0Amovs r0, #0\0Amov r2, pc\0Astr r2, [r1, #4]", "={r0},{r1},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{lr},~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{cpsr},~{memory}"(ptr nonnull %deferframe.buf) #5
%setjmp.result4 = icmp eq i32 %setjmp3, 0
br i1 %setjmp.result4, label %3, label %lpad
@@ -172,7 +173,7 @@ rundefers.callback0: ; preds = %rundefers.loop
br label %rundefers.loophead
rundefers.callback1: ; preds = %rundefers.loop
%setjmp5 = call i32 asm "\0Amovs r0, #0\0Amov r2, pc\0Astr r2, [r1, #4]", "={r0},{r1},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{lr},~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{cpsr},~{memory}"(ptr nonnull %deferframe.buf) #4
%setjmp5 = call i32 asm "\0Amovs r0, #0\0Amov r2, pc\0Astr r2, [r1, #4]", "={r0},{r1},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{lr},~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{cpsr},~{memory}"(ptr nonnull %deferframe.buf) #5
%setjmp.result6 = icmp eq i32 %setjmp5, 0
br i1 %setjmp.result6, label %4, label %lpad
@@ -184,11 +185,11 @@ rundefers.default: ; preds = %rundefers.loop
unreachable
rundefers.end: ; preds = %rundefers.loophead
call void @runtime.destroyDeferFrame(ptr nonnull %deferframe.buf, ptr undef) #3
call void @runtime.destroyDeferFrame(ptr nonnull %deferframe.buf, ptr undef) #4
ret void
recover: ; preds = %rundefers.end7
call void @runtime.destroyDeferFrame(ptr nonnull %deferframe.buf, ptr undef) #3
call void @runtime.destroyDeferFrame(ptr nonnull %deferframe.buf, ptr undef) #4
ret void
lpad: ; preds = %rundefers.callback119, %rundefers.callback016, %rundefers.callback1, %rundefers.callback0, %entry
@@ -210,7 +211,7 @@ rundefers.loop9: ; preds = %rundefers.loophead1
]
rundefers.callback016: ; preds = %rundefers.loop9
%setjmp17 = call i32 asm "\0Amovs r0, #0\0Amov r2, pc\0Astr r2, [r1, #4]", "={r0},{r1},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{lr},~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{cpsr},~{memory}"(ptr nonnull %deferframe.buf) #4
%setjmp17 = call i32 asm "\0Amovs r0, #0\0Amov r2, pc\0Astr r2, [r1, #4]", "={r0},{r1},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{lr},~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{cpsr},~{memory}"(ptr nonnull %deferframe.buf) #5
%setjmp.result18 = icmp eq i32 %setjmp17, 0
br i1 %setjmp.result18, label %6, label %lpad
@@ -219,7 +220,7 @@ rundefers.callback016: ; preds = %rundefers.loop9
br label %rundefers.loophead10
rundefers.callback119: ; preds = %rundefers.loop9
%setjmp20 = call i32 asm "\0Amovs r0, #0\0Amov r2, pc\0Astr r2, [r1, #4]", "={r0},{r1},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{lr},~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{cpsr},~{memory}"(ptr nonnull %deferframe.buf) #4
%setjmp20 = call i32 asm "\0Amovs r0, #0\0Amov r2, pc\0Astr r2, [r1, #4]", "={r0},{r1},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{lr},~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{cpsr},~{memory}"(ptr nonnull %deferframe.buf) #5
%setjmp.result21 = icmp eq i32 %setjmp20, 0
br i1 %setjmp.result21, label %7, label %lpad
@@ -237,19 +238,20 @@ rundefers.end7: ; preds = %rundefers.loophead1
; Function Attrs: nounwind
define internal void @"main.deferMultiple$1"(ptr %context) unnamed_addr #1 {
entry:
call void @runtime.printint32(i32 3, ptr undef) #3
call void @runtime.printint32(i32 3, ptr undef) #4
ret void
}
; Function Attrs: nounwind
define internal void @"main.deferMultiple$2"(ptr %context) unnamed_addr #1 {
entry:
call void @runtime.printint32(i32 5, ptr undef) #3
call void @runtime.printint32(i32 5, ptr undef) #4
ret void
}
attributes #0 = { "target-features"="+armv7-m,+hwdiv,+soft-float,+strict-align,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" }
attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+armv7-m,+hwdiv,+soft-float,+strict-align,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" }
attributes #1 = { nounwind "target-features"="+armv7-m,+hwdiv,+soft-float,+strict-align,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" }
attributes #2 = { nocallback nofree nosync nounwind willreturn }
attributes #3 = { nounwind }
attributes #4 = { nounwind returns_twice }
attributes #2 = { "target-features"="+armv7-m,+hwdiv,+soft-float,+strict-align,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" }
attributes #3 = { nocallback nofree nosync nounwind willreturn }
attributes #4 = { nounwind }
attributes #5 = { nounwind returns_twice }